Home / 99,833.13-137,775.29-54,515.32

Finding the Fourth Proportional to 99,833.13, 137,775.29 and 54,515.32

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Solution

The fourth proportional to 99,833.13, 137,775.29 and 54,515.32 is: 75,234.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,833.13 : 137,775.29 = 54,515.32 : x
  2. Step 2: Convert to fraction form
    99,833.13/137,775.29 = 54,515.32/x
  3. Step 3: Cross multiply
    99,833.13x = 137,775.29 × 54,515.32
  4. Step 4: Simplify right side
    99,833.13x = 7,510,863,814.29
  5. Step 5: Solve for x
    x = 7,510,863,814.29/99,833.13
  6. Step 6: Final answer
    x = 75,234.18

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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.