Home / 157,730.98-217,687.85-89,764.49

Finding the Fourth Proportional to 157,730.98, 217,687.85 and 89,764.49

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Solution

The fourth proportional to 157,730.98, 217,687.85 and 89,764.49 is: 123,885.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,730.98 : 217,687.85 = 89,764.49 : x
  2. Step 2: Convert to fraction form
    157,730.98/217,687.85 = 89,764.49/x
  3. Step 3: Cross multiply
    157,730.98x = 217,687.85 × 89,764.49
  4. Step 4: Simplify right side
    157,730.98x = 19,540,638,834.45
  5. Step 5: Solve for x
    x = 19,540,638,834.45/157,730.98
  6. Step 6: Final answer
    x = 123,885.86

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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.