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Finding the Fourth Proportional to 157,320.83, 217,111.92 and 118,489.13

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Solution

The fourth proportional to 157,320.83, 217,111.92 and 118,489.13 is: 163,521.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,320.83 : 217,111.92 = 118,489.13 : x
  2. Step 2: Convert to fraction form
    157,320.83/217,111.92 = 118,489.13/x
  3. Step 3: Cross multiply
    157,320.83x = 217,111.92 × 118,489.13
  4. Step 4: Simplify right side
    157,320.83x = 25,725,402,130.96
  5. Step 5: Solve for x
    x = 25,725,402,130.96/157,320.83
  6. Step 6: Final answer
    x = 163,521.90

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1.5x scale

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.