Home / 120,598.68-166,426.56-66,888.66

Finding the Fourth Proportional to 120,598.68, 166,426.56 and 66,888.66

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Solution

The fourth proportional to 120,598.68, 166,426.56 and 66,888.66 is: 92,306.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,598.68 : 166,426.56 = 66,888.66 : x
  2. Step 2: Convert to fraction form
    120,598.68/166,426.56 = 66,888.66/x
  3. Step 3: Cross multiply
    120,598.68x = 166,426.56 × 66,888.66
  4. Step 4: Simplify right side
    120,598.68x = 11,132,049,586.81
  5. Step 5: Solve for x
    x = 11,132,049,586.81/120,598.68
  6. Step 6: Final answer
    x = 92,306.56

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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.