Home / 103,485,005.70-155,335,174.61-76,222,082.40

Finding the Fourth Proportional to 103,485,005.70, 155,335,174.61 and 76,222,082.40

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Solution

The fourth proportional to 103,485,005.70, 155,335,174.61 and 76,222,082.40 is: 114,412,425.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,485,005.70 : 155,335,174.61 = 76,222,082.40 : x
  2. Step 2: Convert to fraction form
    103,485,005.70/155,335,174.61 = 76,222,082.40/x
  3. Step 3: Cross multiply
    103,485,005.70x = 155,335,174.61 × 76,222,082.40
  4. Step 4: Simplify right side
    103,485,005.70x = 11,839,970,478,360,698
  5. Step 5: Solve for x
    x = 11,839,970,478,360,698/103,485,005.70
  6. Step 6: Final answer
    x = 114,412,425.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.