Home / 157,764.56-217,685.78-89,777.49

Finding the Fourth Proportional to 157,764.56, 217,685.78 and 89,777.49

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Solution

The fourth proportional to 157,764.56, 217,685.78 and 89,777.49 is: 123,876.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,764.56 : 217,685.78 = 89,777.49 : x
  2. Step 2: Convert to fraction form
    157,764.56/217,685.78 = 89,777.49/x
  3. Step 3: Cross multiply
    157,764.56x = 217,685.78 × 89,777.49
  4. Step 4: Simplify right side
    157,764.56x = 19,543,282,620.79
  5. Step 5: Solve for x
    x = 19,543,282,620.79/157,764.56
  6. Step 6: Final answer
    x = 123,876.25

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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.