Home / 124,564.80-172,231.20-108,818.40

Finding the Fourth Proportional to 124,564.80, 172,231.20 and 108,818.40

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Solution

The fourth proportional to 124,564.80, 172,231.20 and 108,818.40 is: 150,459.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,564.80 : 172,231.20 = 108,818.40 : x
  2. Step 2: Convert to fraction form
    124,564.80/172,231.20 = 108,818.40/x
  3. Step 3: Cross multiply
    124,564.80x = 172,231.20 × 108,818.40
  4. Step 4: Simplify right side
    124,564.80x = 18,741,923,614.08
  5. Step 5: Solve for x
    x = 18,741,923,614.08/124,564.80
  6. Step 6: Final answer
    x = 150,459.23

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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.