Home / 120,614.20-166,457.80-66,916.50

Finding the Fourth Proportional to 120,614.20, 166,457.80 and 66,916.50

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Solution

The fourth proportional to 120,614.20, 166,457.80 and 66,916.50 is: 92,350.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,614.20 : 166,457.80 = 66,916.50 : x
  2. Step 2: Convert to fraction form
    120,614.20/166,457.80 = 66,916.50/x
  3. Step 3: Cross multiply
    120,614.20x = 166,457.80 × 66,916.50
  4. Step 4: Simplify right side
    120,614.20x = 11,138,773,373.70
  5. Step 5: Solve for x
    x = 11,138,773,373.70/120,614.20
  6. Step 6: Final answer
    x = 92,350.43

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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.