Home / 113,743.28-156,939-69,022.64

Finding the Fourth Proportional to 113,743.28, 156,939 and 69,022.64

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Solution

The fourth proportional to 113,743.28, 156,939 and 69,022.64 is: 95,235.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,743.28 : 156,939 = 69,022.64 : x
  2. Step 2: Convert to fraction form
    113,743.28/156,939 = 69,022.64/x
  3. Step 3: Cross multiply
    113,743.28x = 156,939 × 69,022.64
  4. Step 4: Simplify right side
    113,743.28x = 10,832,344,098.96
  5. Step 5: Solve for x
    x = 10,832,344,098.96/113,743.28
  6. Step 6: Final answer
    x = 95,235.02

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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.