Home / 159,091.16-219,543.83-87,470.56

Finding the Fourth Proportional to 159,091.16, 219,543.83 and 87,470.56

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Solution

The fourth proportional to 159,091.16, 219,543.83 and 87,470.56 is: 120,708.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,091.16 : 219,543.83 = 87,470.56 : x
  2. Step 2: Convert to fraction form
    159,091.16/219,543.83 = 87,470.56/x
  3. Step 3: Cross multiply
    159,091.16x = 219,543.83 × 87,470.56
  4. Step 4: Simplify right side
    159,091.16x = 19,203,620,656.93
  5. Step 5: Solve for x
    x = 19,203,620,656.93/159,091.16
  6. Step 6: Final answer
    x = 120,708.28

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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.