Home / 99,651.16-137,490.76-57,194.20

Finding the Fourth Proportional to 99,651.16, 137,490.76 and 57,194.20

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Solution

The fourth proportional to 99,651.16, 137,490.76 and 57,194.20 is: 78,912.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,651.16 : 137,490.76 = 57,194.20 : x
  2. Step 2: Convert to fraction form
    99,651.16/137,490.76 = 57,194.20/x
  3. Step 3: Cross multiply
    99,651.16x = 137,490.76 × 57,194.20
  4. Step 4: Simplify right side
    99,651.16x = 7,863,674,025.59
  5. Step 5: Solve for x
    x = 7,863,674,025.59/99,651.16
  6. Step 6: Final answer
    x = 78,912.02

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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.