Home / 157,719.18-217,633.32-89,744.80

Finding the Fourth Proportional to 157,719.18, 217,633.32 and 89,744.80

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Solution

The fourth proportional to 157,719.18, 217,633.32 and 89,744.80 is: 123,836.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,719.18 : 217,633.32 = 89,744.80 : x
  2. Step 2: Convert to fraction form
    157,719.18/217,633.32 = 89,744.80/x
  3. Step 3: Cross multiply
    157,719.18x = 217,633.32 × 89,744.80
  4. Step 4: Simplify right side
    157,719.18x = 19,531,458,776.74
  5. Step 5: Solve for x
    x = 19,531,458,776.74/157,719.18
  6. Step 6: Final answer
    x = 123,836.93

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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.