Home / 157,487.85-217,351.68-89,515.04

Finding the Fourth Proportional to 157,487.85, 217,351.68 and 89,515.04

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Solution

The fourth proportional to 157,487.85, 217,351.68 and 89,515.04 is: 123,541.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,487.85 : 217,351.68 = 89,515.04 : x
  2. Step 2: Convert to fraction form
    157,487.85/217,351.68 = 89,515.04/x
  3. Step 3: Cross multiply
    157,487.85x = 217,351.68 × 89,515.04
  4. Step 4: Simplify right side
    157,487.85x = 19,456,243,242.51
  5. Step 5: Solve for x
    x = 19,456,243,242.51/157,487.85
  6. Step 6: Final answer
    x = 123,541.23

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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.