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Finding the Fourth Proportional to 146,752.20, 220,128.30 and 84,371.40

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Solution

The fourth proportional to 146,752.20, 220,128.30 and 84,371.40 is: 126,557.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,752.20 : 220,128.30 = 84,371.40 : x
  2. Step 2: Convert to fraction form
    146,752.20/220,128.30 = 84,371.40/x
  3. Step 3: Cross multiply
    146,752.20x = 220,128.30 × 84,371.40
  4. Step 4: Simplify right side
    146,752.20x = 18,572,532,850.62
  5. Step 5: Solve for x
    x = 18,572,532,850.62/146,752.20
  6. Step 6: Final answer
    x = 126,557.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.