Home / 295,077.20-442,615.80-81,844.70

Finding the Fourth Proportional to 295,077.20, 442,615.80 and 81,844.70

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Solution

The fourth proportional to 295,077.20, 442,615.80 and 81,844.70 is: 122,767.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,077.20 : 442,615.80 = 81,844.70 : x
  2. Step 2: Convert to fraction form
    295,077.20/442,615.80 = 81,844.70/x
  3. Step 3: Cross multiply
    295,077.20x = 442,615.80 × 81,844.70
  4. Step 4: Simplify right side
    295,077.20x = 36,225,757,366.26
  5. Step 5: Solve for x
    x = 36,225,757,366.26/295,077.20
  6. Step 6: Final answer
    x = 122,767.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.