Home / 159,062.13-219,505.85-87,443.35

Finding the Fourth Proportional to 159,062.13, 219,505.85 and 87,443.35

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Solution

The fourth proportional to 159,062.13, 219,505.85 and 87,443.35 is: 120,671.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,062.13 : 219,505.85 = 87,443.35 : x
  2. Step 2: Convert to fraction form
    159,062.13/219,505.85 = 87,443.35/x
  3. Step 3: Cross multiply
    159,062.13x = 219,505.85 × 87,443.35
  4. Step 4: Simplify right side
    159,062.13x = 19,194,326,210.53
  5. Step 5: Solve for x
    x = 19,194,326,210.53/159,062.13
  6. Step 6: Final answer
    x = 120,671.88

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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.