Home / 99,641.16-137,476.98-57,184.20

Finding the Fourth Proportional to 99,641.16, 137,476.98 and 57,184.20

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Solution

The fourth proportional to 99,641.16, 137,476.98 and 57,184.20 is: 78,898.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,641.16 : 137,476.98 = 57,184.20 : x
  2. Step 2: Convert to fraction form
    99,641.16/137,476.98 = 57,184.20/x
  3. Step 3: Cross multiply
    99,641.16x = 137,476.98 × 57,184.20
  4. Step 4: Simplify right side
    99,641.16x = 7,861,511,119.72
  5. Step 5: Solve for x
    x = 7,861,511,119.72/99,641.16
  6. Step 6: Final answer
    x = 78,898.23

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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.