Home / 120,932.14-166,885.36-65,741.10

Finding the Fourth Proportional to 120,932.14, 166,885.36 and 65,741.10

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Solution

The fourth proportional to 120,932.14, 166,885.36 and 65,741.10 is: 90,722.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,932.14 : 166,885.36 = 65,741.10 : x
  2. Step 2: Convert to fraction form
    120,932.14/166,885.36 = 65,741.10/x
  3. Step 3: Cross multiply
    120,932.14x = 166,885.36 × 65,741.10
  4. Step 4: Simplify right side
    120,932.14x = 10,971,227,140.30
  5. Step 5: Solve for x
    x = 10,971,227,140.30/120,932.14
  6. Step 6: Final answer
    x = 90,722.18

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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.