Home / 168,220.12-252,105.98-79,497.16

Finding the Fourth Proportional to 168,220.12, 252,105.98 and 79,497.16

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Solution

The fourth proportional to 168,220.12, 252,105.98 and 79,497.16 is: 119,139.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,220.12 : 252,105.98 = 79,497.16 : x
  2. Step 2: Convert to fraction form
    168,220.12/252,105.98 = 79,497.16/x
  3. Step 3: Cross multiply
    168,220.12x = 252,105.98 × 79,497.16
  4. Step 4: Simplify right side
    168,220.12x = 20,041,709,429.02
  5. Step 5: Solve for x
    x = 20,041,709,429.02/168,220.12
  6. Step 6: Final answer
    x = 119,139.79

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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.