Home / 159,091.10-219,543.73-87,470.49

Finding the Fourth Proportional to 159,091.10, 219,543.73 and 87,470.49

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Solution

The fourth proportional to 159,091.10, 219,543.73 and 87,470.49 is: 120,708.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,091.10 : 219,543.73 = 87,470.49 : x
  2. Step 2: Convert to fraction form
    159,091.10/219,543.73 = 87,470.49/x
  3. Step 3: Cross multiply
    159,091.10x = 219,543.73 × 87,470.49
  4. Step 4: Simplify right side
    159,091.10x = 19,203,597,639.53
  5. Step 5: Solve for x
    x = 19,203,597,639.53/159,091.10
  6. Step 6: Final answer
    x = 120,708.18

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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.