Home / 176,781.14-243,963.39-100,303.42

Finding the Fourth Proportional to 176,781.14, 243,963.39 and 100,303.42

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Solution

The fourth proportional to 176,781.14, 243,963.39 and 100,303.42 is: 138,421.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,781.14 : 243,963.39 = 100,303.42 : x
  2. Step 2: Convert to fraction form
    176,781.14/243,963.39 = 100,303.42/x
  3. Step 3: Cross multiply
    176,781.14x = 243,963.39 × 100,303.42
  4. Step 4: Simplify right side
    176,781.14x = 24,470,361,151.98
  5. Step 5: Solve for x
    x = 24,470,361,151.98/176,781.14
  6. Step 6: Final answer
    x = 138,421.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.