Home / 120,708.12-166,575.13-66,995.40

Finding the Fourth Proportional to 120,708.12, 166,575.13 and 66,995.40

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Solution

The fourth proportional to 120,708.12, 166,575.13 and 66,995.40 is: 92,452.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,708.12 : 166,575.13 = 66,995.40 : x
  2. Step 2: Convert to fraction form
    120,708.12/166,575.13 = 66,995.40/x
  3. Step 3: Cross multiply
    120,708.12x = 166,575.13 × 66,995.40
  4. Step 4: Simplify right side
    120,708.12x = 11,159,768,298.42
  5. Step 5: Solve for x
    x = 11,159,768,298.42/120,708.12
  6. Step 6: Final answer
    x = 92,452.50

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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.