Home / 147,086.29-220,642.57-57,126.86

Finding the Fourth Proportional to 147,086.29, 220,642.57 and 57,126.86

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Solution

The fourth proportional to 147,086.29, 220,642.57 and 57,126.86 is: 85,695.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,086.29 : 220,642.57 = 57,126.86 : x
  2. Step 2: Convert to fraction form
    147,086.29/220,642.57 = 57,126.86/x
  3. Step 3: Cross multiply
    147,086.29x = 220,642.57 × 57,126.86
  4. Step 4: Simplify right side
    147,086.29x = 12,604,617,206.43
  5. Step 5: Solve for x
    x = 12,604,617,206.43/147,086.29
  6. Step 6: Final answer
    x = 85,695.39

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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.