Home / 140,691.40-194,159.03-77,029.65

Finding the Fourth Proportional to 140,691.40, 194,159.03 and 77,029.65

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Solution

The fourth proportional to 140,691.40, 194,159.03 and 77,029.65 is: 106,303.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,691.40 : 194,159.03 = 77,029.65 : x
  2. Step 2: Convert to fraction form
    140,691.40/194,159.03 = 77,029.65/x
  3. Step 3: Cross multiply
    140,691.40x = 194,159.03 × 77,029.65
  4. Step 4: Simplify right side
    140,691.40x = 14,956,001,740.09
  5. Step 5: Solve for x
    x = 14,956,001,740.09/140,691.40
  6. Step 6: Final answer
    x = 106,303.60

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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.