Home / 102,227.20-153,398.40-39,889.60

Finding the Fourth Proportional to 102,227.20, 153,398.40 and 39,889.60

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Solution

The fourth proportional to 102,227.20, 153,398.40 and 39,889.60 is: 59,856.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,227.20 : 153,398.40 = 39,889.60 : x
  2. Step 2: Convert to fraction form
    102,227.20/153,398.40 = 39,889.60/x
  3. Step 3: Cross multiply
    102,227.20x = 153,398.40 × 39,889.60
  4. Step 4: Simplify right side
    102,227.20x = 6,119,000,816.64
  5. Step 5: Solve for x
    x = 6,119,000,816.64/102,227.20
  6. Step 6: Final answer
    x = 59,856.88

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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.