Home / 149,359.20-206,191.88-101,215.47

Finding the Fourth Proportional to 149,359.20, 206,191.88 and 101,215.47

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Solution

The fourth proportional to 149,359.20, 206,191.88 and 101,215.47 is: 139,728.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,359.20 : 206,191.88 = 101,215.47 : x
  2. Step 2: Convert to fraction form
    149,359.20/206,191.88 = 101,215.47/x
  3. Step 3: Cross multiply
    149,359.20x = 206,191.88 × 101,215.47
  4. Step 4: Simplify right side
    149,359.20x = 20,869,807,538.31
  5. Step 5: Solve for x
    x = 20,869,807,538.31/149,359.20
  6. Step 6: Final answer
    x = 139,728.97

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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.