Home / 99,311.20-137,026.56-61,567.36

Finding the Fourth Proportional to 99,311.20, 137,026.56 and 61,567.36

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Solution

The fourth proportional to 99,311.20, 137,026.56 and 61,567.36 is: 84,948.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,311.20 : 137,026.56 = 61,567.36 : x
  2. Step 2: Convert to fraction form
    99,311.20/137,026.56 = 61,567.36/x
  3. Step 3: Cross multiply
    99,311.20x = 137,026.56 × 61,567.36
  4. Step 4: Simplify right side
    99,311.20x = 8,436,363,549.08
  5. Step 5: Solve for x
    x = 8,436,363,549.08/99,311.20
  6. Step 6: Final answer
    x = 84,948.76

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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.