Home / 120,586.12-166,378.74-70,266.76

Finding the Fourth Proportional to 120,586.12, 166,378.74 and 70,266.76

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Solution

The fourth proportional to 120,586.12, 166,378.74 and 70,266.76 is: 96,950.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,586.12 : 166,378.74 = 70,266.76 : x
  2. Step 2: Convert to fraction form
    120,586.12/166,378.74 = 70,266.76/x
  3. Step 3: Cross multiply
    120,586.12x = 166,378.74 × 70,266.76
  4. Step 4: Simplify right side
    120,586.12x = 11,690,894,992.68
  5. Step 5: Solve for x
    x = 11,690,894,992.68/120,586.12
  6. Step 6: Final answer
    x = 96,950.59

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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.