Home / 159,091.60-219,543.36-87,470.92

Finding the Fourth Proportional to 159,091.60, 219,543.36 and 87,470.92

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Solution

The fourth proportional to 159,091.60, 219,543.36 and 87,470.92 is: 120,708.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,091.60 : 219,543.36 = 87,470.92 : x
  2. Step 2: Convert to fraction form
    159,091.60/219,543.36 = 87,470.92/x
  3. Step 3: Cross multiply
    159,091.60x = 219,543.36 × 87,470.92
  4. Step 4: Simplify right side
    159,091.60x = 19,203,659,679.09
  5. Step 5: Solve for x
    x = 19,203,659,679.09/159,091.60
  6. Step 6: Final answer
    x = 120,708.19

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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.