Home / 138,127.23-206,182.44-118,531.71

Finding the Fourth Proportional to 138,127.23, 206,182.44 and 118,531.71

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Solution

The fourth proportional to 138,127.23, 206,182.44 and 118,531.71 is: 176,932.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,127.23 : 206,182.44 = 118,531.71 : x
  2. Step 2: Convert to fraction form
    138,127.23/206,182.44 = 118,531.71/x
  3. Step 3: Cross multiply
    138,127.23x = 206,182.44 × 118,531.71
  4. Step 4: Simplify right side
    138,127.23x = 24,439,157,185.17
  5. Step 5: Solve for x
    x = 24,439,157,185.17/138,127.23
  6. Step 6: Final answer
    x = 176,932.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.