Home / 149,381.89-206,132.24-88,126.79

Finding the Fourth Proportional to 149,381.89, 206,132.24 and 88,126.79

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Solution

The fourth proportional to 149,381.89, 206,132.24 and 88,126.79 is: 121,606.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,381.89 : 206,132.24 = 88,126.79 : x
  2. Step 2: Convert to fraction form
    149,381.89/206,132.24 = 88,126.79/x
  3. Step 3: Cross multiply
    149,381.89x = 206,132.24 × 88,126.79
  4. Step 4: Simplify right side
    149,381.89x = 18,165,771,816.37
  5. Step 5: Solve for x
    x = 18,165,771,816.37/149,381.89
  6. Step 6: Final answer
    x = 121,606.25

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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.