Home / 112,406.47-155,116.11-61,418.39

Finding the Fourth Proportional to 112,406.47, 155,116.11 and 61,418.39

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Solution

The fourth proportional to 112,406.47, 155,116.11 and 61,418.39 is: 84,754.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,406.47 : 155,116.11 = 61,418.39 : x
  2. Step 2: Convert to fraction form
    112,406.47/155,116.11 = 61,418.39/x
  3. Step 3: Cross multiply
    112,406.47x = 155,116.11 × 61,418.39
  4. Step 4: Simplify right side
    112,406.47x = 9,526,981,194.00
  5. Step 5: Solve for x
    x = 9,526,981,194.00/112,406.47
  6. Step 6: Final answer
    x = 84,754.74

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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.