Home / 133,278.68-199,888.50-38,488.22

Finding the Fourth Proportional to 133,278.68, 199,888.50 and 38,488.22

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Solution

The fourth proportional to 133,278.68, 199,888.50 and 38,488.22 is: 57,723.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,278.68 : 199,888.50 = 38,488.22 : x
  2. Step 2: Convert to fraction form
    133,278.68/199,888.50 = 38,488.22/x
  3. Step 3: Cross multiply
    133,278.68x = 199,888.50 × 38,488.22
  4. Step 4: Simplify right side
    133,278.68x = 7,693,352,918.86
  5. Step 5: Solve for x
    x = 7,693,352,918.86/133,278.68
  6. Step 6: Final answer
    x = 57,723.81

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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.