Home / 112,251.40-154,927-66,932.30

Finding the Fourth Proportional to 112,251.40, 154,927 and 66,932.30

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Solution

The fourth proportional to 112,251.40, 154,927 and 66,932.30 is: 92,378.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,251.40 : 154,927 = 66,932.30 : x
  2. Step 2: Convert to fraction form
    112,251.40/154,927 = 66,932.30/x
  3. Step 3: Cross multiply
    112,251.40x = 154,927 × 66,932.30
  4. Step 4: Simplify right side
    112,251.40x = 10,369,620,442.10
  5. Step 5: Solve for x
    x = 10,369,620,442.10/112,251.40
  6. Step 6: Final answer
    x = 92,378.54

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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.