Home / 99,545.45-137,370.33-57,101.18

Finding the Fourth Proportional to 99,545.45, 137,370.33 and 57,101.18

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Solution

The fourth proportional to 99,545.45, 137,370.33 and 57,101.18 is: 78,798.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,545.45 : 137,370.33 = 57,101.18 : x
  2. Step 2: Convert to fraction form
    99,545.45/137,370.33 = 57,101.18/x
  3. Step 3: Cross multiply
    99,545.45x = 137,370.33 × 57,101.18
  4. Step 4: Simplify right side
    99,545.45x = 7,844,007,939.99
  5. Step 5: Solve for x
    x = 7,844,007,939.99/99,545.45
  6. Step 6: Final answer
    x = 78,798.26

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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.