Home / 102,206.27-140,964.62-66,407.92

Finding the Fourth Proportional to 102,206.27, 140,964.62 and 66,407.92

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Solution

The fourth proportional to 102,206.27, 140,964.62 and 66,407.92 is: 91,590.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,206.27 : 140,964.62 = 66,407.92 : x
  2. Step 2: Convert to fraction form
    102,206.27/140,964.62 = 66,407.92/x
  3. Step 3: Cross multiply
    102,206.27x = 140,964.62 × 66,407.92
  4. Step 4: Simplify right side
    102,206.27x = 9,361,166,523.34
  5. Step 5: Solve for x
    x = 9,361,166,523.34/102,206.27
  6. Step 6: Final answer
    x = 91,590.92

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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.