Home / 92,901.20-128,204.17-55,174.64

Finding the Fourth Proportional to 92,901.20, 128,204.17 and 55,174.64

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Solution

The fourth proportional to 92,901.20, 128,204.17 and 55,174.64 is: 76,141.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,901.20 : 128,204.17 = 55,174.64 : x
  2. Step 2: Convert to fraction form
    92,901.20/128,204.17 = 55,174.64/x
  3. Step 3: Cross multiply
    92,901.20x = 128,204.17 × 55,174.64
  4. Step 4: Simplify right side
    92,901.20x = 7,073,618,147.29
  5. Step 5: Solve for x
    x = 7,073,618,147.29/92,901.20
  6. Step 6: Final answer
    x = 76,141.30

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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.