Home / 149,663.79-206,562.39-89,238.15

Finding the Fourth Proportional to 149,663.79, 206,562.39 and 89,238.15

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Solution

The fourth proportional to 149,663.79, 206,562.39 and 89,238.15 is: 123,164.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,663.79 : 206,562.39 = 89,238.15 : x
  2. Step 2: Convert to fraction form
    149,663.79/206,562.39 = 89,238.15/x
  3. Step 3: Cross multiply
    149,663.79x = 206,562.39 × 89,238.15
  4. Step 4: Simplify right side
    149,663.79x = 18,433,245,543.18
  5. Step 5: Solve for x
    x = 18,433,245,543.18/149,663.79
  6. Step 6: Final answer
    x = 123,164.36

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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.