Home / 120,612.06-166,390.07-75,301.27

Finding the Fourth Proportional to 120,612.06, 166,390.07 and 75,301.27

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Solution

The fourth proportional to 120,612.06, 166,390.07 and 75,301.27 is: 103,881.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,612.06 : 166,390.07 = 75,301.27 : x
  2. Step 2: Convert to fraction form
    120,612.06/166,390.07 = 75,301.27/x
  3. Step 3: Cross multiply
    120,612.06x = 166,390.07 × 75,301.27
  4. Step 4: Simplify right side
    120,612.06x = 12,529,382,793.91
  5. Step 5: Solve for x
    x = 12,529,382,793.91/120,612.06
  6. Step 6: Final answer
    x = 103,881.67

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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.