Home / 138,264.11-207,396.83-48,306.45

Finding the Fourth Proportional to 138,264.11, 207,396.83 and 48,306.45

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Solution

The fourth proportional to 138,264.11, 207,396.83 and 48,306.45 is: 72,459.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,264.11 : 207,396.83 = 48,306.45 : x
  2. Step 2: Convert to fraction form
    138,264.11/207,396.83 = 48,306.45/x
  3. Step 3: Cross multiply
    138,264.11x = 207,396.83 × 48,306.45
  4. Step 4: Simplify right side
    138,264.11x = 10,018,604,777.89
  5. Step 5: Solve for x
    x = 10,018,604,777.89/138,264.11
  6. Step 6: Final answer
    x = 72,459.91

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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.