Home / 138,231.08-207,307.98-38,367.48

Finding the Fourth Proportional to 138,231.08, 207,307.98 and 38,367.48

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Solution

The fourth proportional to 138,231.08, 207,307.98 and 38,367.48 is: 57,540.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,231.08 : 207,307.98 = 38,367.48 : x
  2. Step 2: Convert to fraction form
    138,231.08/207,307.98 = 38,367.48/x
  3. Step 3: Cross multiply
    138,231.08x = 207,307.98 × 38,367.48
  4. Step 4: Simplify right side
    138,231.08x = 7,953,884,776.49
  5. Step 5: Solve for x
    x = 7,953,884,776.49/138,231.08
  6. Step 6: Final answer
    x = 57,540.50

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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.