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Finding the Fourth Proportional to 120,861.67, 181,265.10 and 45,955.18

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Solution

The fourth proportional to 120,861.67, 181,265.10 and 45,955.18 is: 68,922.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,861.67 : 181,265.10 = 45,955.18 : x
  2. Step 2: Convert to fraction form
    120,861.67/181,265.10 = 45,955.18/x
  3. Step 3: Cross multiply
    120,861.67x = 181,265.10 × 45,955.18
  4. Step 4: Simplify right side
    120,861.67x = 8,330,070,298.22
  5. Step 5: Solve for x
    x = 8,330,070,298.22/120,861.67
  6. Step 6: Final answer
    x = 68,922.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.