Home / 99,398.13-137,169.41-54,686.13

Finding the Fourth Proportional to 99,398.13, 137,169.41 and 54,686.13

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Solution

The fourth proportional to 99,398.13, 137,169.41 and 54,686.13 is: 75,466.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,398.13 : 137,169.41 = 54,686.13 : x
  2. Step 2: Convert to fraction form
    99,398.13/137,169.41 = 54,686.13/x
  3. Step 3: Cross multiply
    99,398.13x = 137,169.41 × 54,686.13
  4. Step 4: Simplify right side
    99,398.13x = 7,501,264,187.28
  5. Step 5: Solve for x
    x = 7,501,264,187.28/99,398.13
  6. Step 6: Final answer
    x = 75,466.85

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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.