Home / 157,506.56-217,397.76-121,641.92

Finding the Fourth Proportional to 157,506.56, 217,397.76 and 121,641.92

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Solution

The fourth proportional to 157,506.56, 217,397.76 and 121,641.92 is: 167,895.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,506.56 : 217,397.76 = 121,641.92 : x
  2. Step 2: Convert to fraction form
    157,506.56/217,397.76 = 121,641.92/x
  3. Step 3: Cross multiply
    157,506.56x = 217,397.76 × 121,641.92
  4. Step 4: Simplify right side
    157,506.56x = 26,444,680,930.10
  5. Step 5: Solve for x
    x = 26,444,680,930.10/157,506.56
  6. Step 6: Final answer
    x = 167,895.74

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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.