Home / 112,959.28-155,886.69-61,974.19

Finding the Fourth Proportional to 112,959.28, 155,886.69 and 61,974.19

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Solution

The fourth proportional to 112,959.28, 155,886.69 and 61,974.19 is: 85,525.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,959.28 : 155,886.69 = 61,974.19 : x
  2. Step 2: Convert to fraction form
    112,959.28/155,886.69 = 61,974.19/x
  3. Step 3: Cross multiply
    112,959.28x = 155,886.69 × 61,974.19
  4. Step 4: Simplify right side
    112,959.28x = 9,660,951,344.53
  5. Step 5: Solve for x
    x = 9,660,951,344.53/112,959.28
  6. Step 6: Final answer
    x = 85,525.96

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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.