Home / 140,841.18-194,365.54-77,178.42

Finding the Fourth Proportional to 140,841.18, 194,365.54 and 77,178.42

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Solution

The fourth proportional to 140,841.18, 194,365.54 and 77,178.42 is: 106,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,841.18 : 194,365.54 = 77,178.42 : x
  2. Step 2: Convert to fraction form
    140,841.18/194,365.54 = 77,178.42/x
  3. Step 3: Cross multiply
    140,841.18x = 194,365.54 × 77,178.42
  4. Step 4: Simplify right side
    140,841.18x = 15,000,825,279.65
  5. Step 5: Solve for x
    x = 15,000,825,279.65/140,841.18
  6. Step 6: Final answer
    x = 106,508.80

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1.5x scale

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.