Home / 120,457.48-166,217.70-66,728.92

Finding the Fourth Proportional to 120,457.48, 166,217.70 and 66,728.92

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Solution

The fourth proportional to 120,457.48, 166,217.70 and 66,728.92 is: 92,078.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,457.48 : 166,217.70 = 66,728.92 : x
  2. Step 2: Convert to fraction form
    120,457.48/166,217.70 = 66,728.92/x
  3. Step 3: Cross multiply
    120,457.48x = 166,217.70 × 66,728.92
  4. Step 4: Simplify right side
    120,457.48x = 11,091,527,605.88
  5. Step 5: Solve for x
    x = 11,091,527,605.88/120,457.48
  6. Step 6: Final answer
    x = 92,078.36

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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.