Home / 157,728.92-236,354-115,637.04

Finding the Fourth Proportional to 157,728.92, 236,354 and 115,637.04

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Solution

The fourth proportional to 157,728.92, 236,354 and 115,637.04 is: 173,280.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,728.92 : 236,354 = 115,637.04 : x
  2. Step 2: Convert to fraction form
    157,728.92/236,354 = 115,637.04/x
  3. Step 3: Cross multiply
    157,728.92x = 236,354 × 115,637.04
  4. Step 4: Simplify right side
    157,728.92x = 27,331,276,952.16
  5. Step 5: Solve for x
    x = 27,331,276,952.16/157,728.92
  6. Step 6: Final answer
    x = 173,280.06

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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.