Home / 148,736.24-205,248.80-85,081.04

Finding the Fourth Proportional to 148,736.24, 205,248.80 and 85,081.04

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Solution

The fourth proportional to 148,736.24, 205,248.80 and 85,081.04 is: 117,407.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,736.24 : 205,248.80 = 85,081.04 : x
  2. Step 2: Convert to fraction form
    148,736.24/205,248.80 = 85,081.04/x
  3. Step 3: Cross multiply
    148,736.24x = 205,248.80 × 85,081.04
  4. Step 4: Simplify right side
    148,736.24x = 17,462,781,362.75
  5. Step 5: Solve for x
    x = 17,462,781,362.75/148,736.24
  6. Step 6: Final answer
    x = 117,407.71

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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.