Home / 112,663.38-155,474.17-61,675.50

Finding the Fourth Proportional to 112,663.38, 155,474.17 and 61,675.50

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Solution

The fourth proportional to 112,663.38, 155,474.17 and 61,675.50 is: 85,111.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,663.38 : 155,474.17 = 61,675.50 : x
  2. Step 2: Convert to fraction form
    112,663.38/155,474.17 = 61,675.50/x
  3. Step 3: Cross multiply
    112,663.38x = 155,474.17 × 61,675.50
  4. Step 4: Simplify right side
    112,663.38x = 9,588,947,171.84
  5. Step 5: Solve for x
    x = 9,588,947,171.84/112,663.38
  6. Step 6: Final answer
    x = 85,111.48

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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.