Home / 136,712.81-205,060.51-51,306.82

Finding the Fourth Proportional to 136,712.81, 205,060.51 and 51,306.82

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Solution

The fourth proportional to 136,712.81, 205,060.51 and 51,306.82 is: 76,956.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,712.81 : 205,060.51 = 51,306.82 : x
  2. Step 2: Convert to fraction form
    136,712.81/205,060.51 = 51,306.82/x
  3. Step 3: Cross multiply
    136,712.81x = 205,060.51 × 51,306.82
  4. Step 4: Simplify right side
    136,712.81x = 10,521,002,227.16
  5. Step 5: Solve for x
    x = 10,521,002,227.16/136,712.81
  6. Step 6: Final answer
    x = 76,956.96

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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.