Home / 113,726.20-156,949.51-65,995.60

Finding the Fourth Proportional to 113,726.20, 156,949.51 and 65,995.60

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Solution

The fourth proportional to 113,726.20, 156,949.51 and 65,995.60 is: 91,078.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,726.20 : 156,949.51 = 65,995.60 : x
  2. Step 2: Convert to fraction form
    113,726.20/156,949.51 = 65,995.60/x
  3. Step 3: Cross multiply
    113,726.20x = 156,949.51 × 65,995.60
  4. Step 4: Simplify right side
    113,726.20x = 10,357,977,082.16
  5. Step 5: Solve for x
    x = 10,357,977,082.16/113,726.20
  6. Step 6: Final answer
    x = 91,078.20

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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.