Home / 133,270.18-183,917.79-72,844.89

Finding the Fourth Proportional to 133,270.18, 183,917.79 and 72,844.89

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Solution

The fourth proportional to 133,270.18, 183,917.79 and 72,844.89 is: 100,528.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,270.18 : 183,917.79 = 72,844.89 : x
  2. Step 2: Convert to fraction form
    133,270.18/183,917.79 = 72,844.89/x
  3. Step 3: Cross multiply
    133,270.18x = 183,917.79 × 72,844.89
  4. Step 4: Simplify right side
    133,270.18x = 13,397,470,491.90
  5. Step 5: Solve for x
    x = 13,397,470,491.90/133,270.18
  6. Step 6: Final answer
    x = 100,528.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.