Home / 110,906.10-166,140.45-66,400.65

Finding the Fourth Proportional to 110,906.10, 166,140.45 and 66,400.65

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Solution

The fourth proportional to 110,906.10, 166,140.45 and 66,400.65 is: 99,470.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,906.10 : 166,140.45 = 66,400.65 : x
  2. Step 2: Convert to fraction form
    110,906.10/166,140.45 = 66,400.65/x
  3. Step 3: Cross multiply
    110,906.10x = 166,140.45 × 66,400.65
  4. Step 4: Simplify right side
    110,906.10x = 11,031,833,871.29
  5. Step 5: Solve for x
    x = 11,031,833,871.29/110,906.10
  6. Step 6: Final answer
    x = 99,470.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.