Home / 157,337.48-217,124.52-85,717.28

Finding the Fourth Proportional to 157,337.48, 217,124.52 and 85,717.28

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Solution

The fourth proportional to 157,337.48, 217,124.52 and 85,717.28 is: 118,289.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,337.48 : 217,124.52 = 85,717.28 : x
  2. Step 2: Convert to fraction form
    157,337.48/217,124.52 = 85,717.28/x
  3. Step 3: Cross multiply
    157,337.48x = 217,124.52 × 85,717.28
  4. Step 4: Simplify right side
    157,337.48x = 18,611,323,275.71
  5. Step 5: Solve for x
    x = 18,611,323,275.71/157,337.48
  6. Step 6: Final answer
    x = 118,289.19

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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.