Home / 120,422.53-166,192.50-66,712.69

Finding the Fourth Proportional to 120,422.53, 166,192.50 and 66,712.69

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Solution

The fourth proportional to 120,422.53, 166,192.50 and 66,712.69 is: 92,068.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,422.53 : 166,192.50 = 66,712.69 : x
  2. Step 2: Convert to fraction form
    120,422.53/166,192.50 = 66,712.69/x
  3. Step 3: Cross multiply
    120,422.53x = 166,192.50 × 66,712.69
  4. Step 4: Simplify right side
    120,422.53x = 11,087,148,732.83
  5. Step 5: Solve for x
    x = 11,087,148,732.83/120,422.53
  6. Step 6: Final answer
    x = 92,068.72

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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.