Home / 157,045.38-216,722.72-89,040.61

Finding the Fourth Proportional to 157,045.38, 216,722.72 and 89,040.61

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Solution

The fourth proportional to 157,045.38, 216,722.72 and 89,040.61 is: 122,876.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,045.38 : 216,722.72 = 89,040.61 : x
  2. Step 2: Convert to fraction form
    157,045.38/216,722.72 = 89,040.61/x
  3. Step 3: Cross multiply
    157,045.38x = 216,722.72 × 89,040.61
  4. Step 4: Simplify right side
    157,045.38x = 19,297,123,189.66
  5. Step 5: Solve for x
    x = 19,297,123,189.66/157,045.38
  6. Step 6: Final answer
    x = 122,876.10

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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.