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Finding the Fourth Proportional to 149,726.70, 206,595.63 and 89,300.70

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Solution

The fourth proportional to 149,726.70, 206,595.63 and 89,300.70 is: 123,218.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,726.70 : 206,595.63 = 89,300.70 : x
  2. Step 2: Convert to fraction form
    149,726.70/206,595.63 = 89,300.70/x
  3. Step 3: Cross multiply
    149,726.70x = 206,595.63 × 89,300.70
  4. Step 4: Simplify right side
    149,726.70x = 18,449,134,375.94
  5. Step 5: Solve for x
    x = 18,449,134,375.94/149,726.70
  6. Step 6: Final answer
    x = 123,218.73

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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.