Home / 205,151.14-307,864.18-72,031.84

Finding the Fourth Proportional to 205,151.14, 307,864.18 and 72,031.84

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Solution

The fourth proportional to 205,151.14, 307,864.18 and 72,031.84 is: 108,096.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,151.14 : 307,864.18 = 72,031.84 : x
  2. Step 2: Convert to fraction form
    205,151.14/307,864.18 = 72,031.84/x
  3. Step 3: Cross multiply
    205,151.14x = 307,864.18 × 72,031.84
  4. Step 4: Simplify right side
    205,151.14x = 22,176,023,355.49
  5. Step 5: Solve for x
    x = 22,176,023,355.49/205,151.14
  6. Step 6: Final answer
    x = 108,096.03

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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.