Home / 113,785.76-170,625.81-66,414.53

Finding the Fourth Proportional to 113,785.76, 170,625.81 and 66,414.53

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Solution

The fourth proportional to 113,785.76, 170,625.81 and 66,414.53 is: 99,590.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,785.76 : 170,625.81 = 66,414.53 : x
  2. Step 2: Convert to fraction form
    113,785.76/170,625.81 = 66,414.53/x
  3. Step 3: Cross multiply
    113,785.76x = 170,625.81 × 66,414.53
  4. Step 4: Simplify right side
    113,785.76x = 11,332,032,123.89
  5. Step 5: Solve for x
    x = 11,332,032,123.89/113,785.76
  6. Step 6: Final answer
    x = 99,590.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.