Home / 112,158.23-154,772.88-66,835.19

Finding the Fourth Proportional to 112,158.23, 154,772.88 and 66,835.19

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Solution

The fourth proportional to 112,158.23, 154,772.88 and 66,835.19 is: 92,229.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,158.23 : 154,772.88 = 66,835.19 : x
  2. Step 2: Convert to fraction form
    112,158.23/154,772.88 = 66,835.19/x
  3. Step 3: Cross multiply
    112,158.23x = 154,772.88 × 66,835.19
  4. Step 4: Simplify right side
    112,158.23x = 10,344,274,067.78
  5. Step 5: Solve for x
    x = 10,344,274,067.78/112,158.23
  6. Step 6: Final answer
    x = 92,229.30

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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.