Home / 159,398.04-219,966.30-87,776.52

Finding the Fourth Proportional to 159,398.04, 219,966.30 and 87,776.52

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Solution

The fourth proportional to 159,398.04, 219,966.30 and 87,776.52 is: 121,129.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,398.04 : 219,966.30 = 87,776.52 : x
  2. Step 2: Convert to fraction form
    159,398.04/219,966.30 = 87,776.52/x
  3. Step 3: Cross multiply
    159,398.04x = 219,966.30 × 87,776.52
  4. Step 4: Simplify right side
    159,398.04x = 19,307,876,331.28
  5. Step 5: Solve for x
    x = 19,307,876,331.28/159,398.04
  6. Step 6: Final answer
    x = 121,129.95

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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.