Home / 158,718.56-219,037.91-87,101.15

Finding the Fourth Proportional to 158,718.56, 219,037.91 and 87,101.15

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Solution

The fourth proportional to 158,718.56, 219,037.91 and 87,101.15 is: 120,203.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,718.56 : 219,037.91 = 87,101.15 : x
  2. Step 2: Convert to fraction form
    158,718.56/219,037.91 = 87,101.15/x
  3. Step 3: Cross multiply
    158,718.56x = 219,037.91 × 87,101.15
  4. Step 4: Simplify right side
    158,718.56x = 19,078,452,323.90
  5. Step 5: Solve for x
    x = 19,078,452,323.90/158,718.56
  6. Step 6: Final answer
    x = 120,203.04

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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.