Home / 113,900.38-157,184.19-66,153.74

Finding the Fourth Proportional to 113,900.38, 157,184.19 and 66,153.74

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Solution

The fourth proportional to 113,900.38, 157,184.19 and 66,153.74 is: 91,293.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,900.38 : 157,184.19 = 66,153.74 : x
  2. Step 2: Convert to fraction form
    113,900.38/157,184.19 = 66,153.74/x
  3. Step 3: Cross multiply
    113,900.38x = 157,184.19 × 66,153.74
  4. Step 4: Simplify right side
    113,900.38x = 10,398,321,251.45
  5. Step 5: Solve for x
    x = 10,398,321,251.45/113,900.38
  6. Step 6: Final answer
    x = 91,293.12

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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.