Home / 99,666.68-137,535.27-56,645.04

Finding the Fourth Proportional to 99,666.68, 137,535.27 and 56,645.04

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Solution

The fourth proportional to 99,666.68, 137,535.27 and 56,645.04 is: 78,167.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,666.68 : 137,535.27 = 56,645.04 : x
  2. Step 2: Convert to fraction form
    99,666.68/137,535.27 = 56,645.04/x
  3. Step 3: Cross multiply
    99,666.68x = 137,535.27 × 56,645.04
  4. Step 4: Simplify right side
    99,666.68x = 7,790,690,870.56
  5. Step 5: Solve for x
    x = 7,790,690,870.56/99,666.68
  6. Step 6: Final answer
    x = 78,167.46

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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.