Home / 147,722.51-203,854.29-90,357.61

Finding the Fourth Proportional to 147,722.51, 203,854.29 and 90,357.61

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Solution

The fourth proportional to 147,722.51, 203,854.29 and 90,357.61 is: 124,691.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,722.51 : 203,854.29 = 90,357.61 : x
  2. Step 2: Convert to fraction form
    147,722.51/203,854.29 = 90,357.61/x
  3. Step 3: Cross multiply
    147,722.51x = 203,854.29 × 90,357.61
  4. Step 4: Simplify right side
    147,722.51x = 18,419,786,490.49
  5. Step 5: Solve for x
    x = 18,419,786,490.49/147,722.51
  6. Step 6: Final answer
    x = 124,691.81

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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.