Home / 99,998.24-138,007.20-59,711.68

Finding the Fourth Proportional to 99,998.24, 138,007.20 and 59,711.68

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Solution

The fourth proportional to 99,998.24, 138,007.20 and 59,711.68 is: 82,407.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,998.24 : 138,007.20 = 59,711.68 : x
  2. Step 2: Convert to fraction form
    99,998.24/138,007.20 = 59,711.68/x
  3. Step 3: Cross multiply
    99,998.24x = 138,007.20 × 59,711.68
  4. Step 4: Simplify right side
    99,998.24x = 8,240,641,764.10
  5. Step 5: Solve for x
    x = 8,240,641,764.10/99,998.24
  6. Step 6: Final answer
    x = 82,407.87

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1.5x scale

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.