Home / 157,412.24-217,222.52-85,790.72

Finding the Fourth Proportional to 157,412.24, 217,222.52 and 85,790.72

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Solution

The fourth proportional to 157,412.24, 217,222.52 and 85,790.72 is: 118,387.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,412.24 : 217,222.52 = 85,790.72 : x
  2. Step 2: Convert to fraction form
    157,412.24/217,222.52 = 85,790.72/x
  3. Step 3: Cross multiply
    157,412.24x = 217,222.52 × 85,790.72
  4. Step 4: Simplify right side
    157,412.24x = 18,635,676,391.01
  5. Step 5: Solve for x
    x = 18,635,676,391.01/157,412.24
  6. Step 6: Final answer
    x = 118,387.72

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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.