Home / 140,348.87-193,679.16-76,685.30

Finding the Fourth Proportional to 140,348.87, 193,679.16 and 76,685.30

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Solution

The fourth proportional to 140,348.87, 193,679.16 and 76,685.30 is: 105,824.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,348.87 : 193,679.16 = 76,685.30 : x
  2. Step 2: Convert to fraction form
    140,348.87/193,679.16 = 76,685.30/x
  3. Step 3: Cross multiply
    140,348.87x = 193,679.16 × 76,685.30
  4. Step 4: Simplify right side
    140,348.87x = 14,852,344,488.35
  5. Step 5: Solve for x
    x = 14,852,344,488.35/140,348.87
  6. Step 6: Final answer
    x = 105,824.47

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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.