Home / 120,511.40-166,306.08-66,797.30

Finding the Fourth Proportional to 120,511.40, 166,306.08 and 66,797.30

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Solution

The fourth proportional to 120,511.40, 166,306.08 and 66,797.30 is: 92,180.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,511.40 : 166,306.08 = 66,797.30 : x
  2. Step 2: Convert to fraction form
    120,511.40/166,306.08 = 66,797.30/x
  3. Step 3: Cross multiply
    120,511.40x = 166,306.08 × 66,797.30
  4. Step 4: Simplify right side
    120,511.40x = 11,108,797,117.58
  5. Step 5: Solve for x
    x = 11,108,797,117.58/120,511.40
  6. Step 6: Final answer
    x = 92,180.47

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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.