Home / 99,582.10-137,378.85-67,306.42

Finding the Fourth Proportional to 99,582.10, 137,378.85 and 67,306.42

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Solution

The fourth proportional to 99,582.10, 137,378.85 and 67,306.42 is: 92,852.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,582.10 : 137,378.85 = 67,306.42 : x
  2. Step 2: Convert to fraction form
    99,582.10/137,378.85 = 67,306.42/x
  3. Step 3: Cross multiply
    99,582.10x = 137,378.85 × 67,306.42
  4. Step 4: Simplify right side
    99,582.10x = 9,246,478,577.22
  5. Step 5: Solve for x
    x = 9,246,478,577.22/99,582.10
  6. Step 6: Final answer
    x = 92,852.82

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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.