Home / 112,121.97-154,729.52-61,134.27

Finding the Fourth Proportional to 112,121.97, 154,729.52 and 61,134.27

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Solution

The fourth proportional to 112,121.97, 154,729.52 and 61,134.27 is: 84,365.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,121.97 : 154,729.52 = 61,134.27 : x
  2. Step 2: Convert to fraction form
    112,121.97/154,729.52 = 61,134.27/x
  3. Step 3: Cross multiply
    112,121.97x = 154,729.52 × 61,134.27
  4. Step 4: Simplify right side
    112,121.97x = 9,459,276,252.65
  5. Step 5: Solve for x
    x = 9,459,276,252.65/112,121.97
  6. Step 6: Final answer
    x = 84,365.95

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1.5x scale

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.