Home / 138,265.12-207,398.33-48,307.45

Finding the Fourth Proportional to 138,265.12, 207,398.33 and 48,307.45

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Solution

The fourth proportional to 138,265.12, 207,398.33 and 48,307.45 is: 72,461.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,265.12 : 207,398.33 = 48,307.45 : x
  2. Step 2: Convert to fraction form
    138,265.12/207,398.33 = 48,307.45/x
  3. Step 3: Cross multiply
    138,265.12x = 207,398.33 × 48,307.45
  4. Step 4: Simplify right side
    138,265.12x = 10,018,884,456.56
  5. Step 5: Solve for x
    x = 10,018,884,456.56/138,265.12
  6. Step 6: Final answer
    x = 72,461.40

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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.