Home / 149,613.13-206,437.85-89,189.39

Finding the Fourth Proportional to 149,613.13, 206,437.85 and 89,189.39

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Solution

The fourth proportional to 149,613.13, 206,437.85 and 89,189.39 is: 123,064.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,613.13 : 206,437.85 = 89,189.39 : x
  2. Step 2: Convert to fraction form
    149,613.13/206,437.85 = 89,189.39/x
  3. Step 3: Cross multiply
    149,613.13x = 206,437.85 × 89,189.39
  4. Step 4: Simplify right side
    149,613.13x = 18,412,065,157.81
  5. Step 5: Solve for x
    x = 18,412,065,157.81/149,613.13
  6. Step 6: Final answer
    x = 123,064.50

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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.