Home / 92,780.28-139,195.53-66,159.90

Finding the Fourth Proportional to 92,780.28, 139,195.53 and 66,159.90

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Solution

The fourth proportional to 92,780.28, 139,195.53 and 66,159.90 is: 99,257.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,780.28 : 139,195.53 = 66,159.90 : x
  2. Step 2: Convert to fraction form
    92,780.28/139,195.53 = 66,159.90/x
  3. Step 3: Cross multiply
    92,780.28x = 139,195.53 × 66,159.90
  4. Step 4: Simplify right side
    92,780.28x = 9,209,162,345.25
  5. Step 5: Solve for x
    x = 9,209,162,345.25/92,780.28
  6. Step 6: Final answer
    x = 99,257.76

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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.