Home / 155,848.12-215,071.38-84,227.96

Finding the Fourth Proportional to 155,848.12, 215,071.38 and 84,227.96

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Solution

The fourth proportional to 155,848.12, 215,071.38 and 84,227.96 is: 116,235.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,848.12 : 215,071.38 = 84,227.96 : x
  2. Step 2: Convert to fraction form
    155,848.12/215,071.38 = 84,227.96/x
  3. Step 3: Cross multiply
    155,848.12x = 215,071.38 × 84,227.96
  4. Step 4: Simplify right side
    155,848.12x = 18,115,023,591.78
  5. Step 5: Solve for x
    x = 18,115,023,591.78/155,848.12
  6. Step 6: Final answer
    x = 116,235.11

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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.