Home / 72,123.42-108,195.37-22,207.66

Finding the Fourth Proportional to 72,123.42, 108,195.37 and 22,207.66

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Solution

The fourth proportional to 72,123.42, 108,195.37 and 22,207.66 is: 33,314.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,123.42 : 108,195.37 = 22,207.66 : x
  2. Step 2: Convert to fraction form
    72,123.42/108,195.37 = 22,207.66/x
  3. Step 3: Cross multiply
    72,123.42x = 108,195.37 × 22,207.66
  4. Step 4: Simplify right side
    72,123.42x = 2,402,765,990.53
  5. Step 5: Solve for x
    x = 2,402,765,990.53/72,123.42
  6. Step 6: Final answer
    x = 33,314.64

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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.