Home / 103,610.36-155,190.90-64,177.40

Finding the Fourth Proportional to 103,610.36, 155,190.90 and 64,177.40

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Solution

The fourth proportional to 103,610.36, 155,190.90 and 64,177.40 is: 96,126.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,610.36 : 155,190.90 = 64,177.40 : x
  2. Step 2: Convert to fraction form
    103,610.36/155,190.90 = 64,177.40/x
  3. Step 3: Cross multiply
    103,610.36x = 155,190.90 × 64,177.40
  4. Step 4: Simplify right side
    103,610.36x = 9,959,748,465.66
  5. Step 5: Solve for x
    x = 9,959,748,465.66/103,610.36
  6. Step 6: Final answer
    x = 96,126.96

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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.