Home / 99,325.18-137,098.38-65,359.86

Finding the Fourth Proportional to 99,325.18, 137,098.38 and 65,359.86

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Solution

The fourth proportional to 99,325.18, 137,098.38 and 65,359.86 is: 90,216.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,325.18 : 137,098.38 = 65,359.86 : x
  2. Step 2: Convert to fraction form
    99,325.18/137,098.38 = 65,359.86/x
  3. Step 3: Cross multiply
    99,325.18x = 137,098.38 × 65,359.86
  4. Step 4: Simplify right side
    99,325.18x = 8,960,730,923.03
  5. Step 5: Solve for x
    x = 8,960,730,923.03/99,325.18
  6. Step 6: Final answer
    x = 90,216.11

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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.