Home / 99,412.56-137,144.12-59,103.44

Finding the Fourth Proportional to 99,412.56, 137,144.12 and 59,103.44

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Solution

The fourth proportional to 99,412.56, 137,144.12 and 59,103.44 is: 81,535.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,412.56 : 137,144.12 = 59,103.44 : x
  2. Step 2: Convert to fraction form
    99,412.56/137,144.12 = 59,103.44/x
  3. Step 3: Cross multiply
    99,412.56x = 137,144.12 × 59,103.44
  4. Step 4: Simplify right side
    99,412.56x = 8,105,689,267.77
  5. Step 5: Solve for x
    x = 8,105,689,267.77/99,412.56
  6. Step 6: Final answer
    x = 81,535.87

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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.