Home / 99,140.83-148,728.17-39,137.92

Finding the Fourth Proportional to 99,140.83, 148,728.17 and 39,137.92

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Solution

The fourth proportional to 99,140.83, 148,728.17 and 39,137.92 is: 58,713.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,140.83 : 148,728.17 = 39,137.92 : x
  2. Step 2: Convert to fraction form
    99,140.83/148,728.17 = 39,137.92/x
  3. Step 3: Cross multiply
    99,140.83x = 148,728.17 × 39,137.92
  4. Step 4: Simplify right side
    99,140.83x = 5,820,911,435.08
  5. Step 5: Solve for x
    x = 5,820,911,435.08/99,140.83
  6. Step 6: Final answer
    x = 58,713.56

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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.