Home / 295,075.20-442,612.80-81,842.70

Finding the Fourth Proportional to 295,075.20, 442,612.80 and 81,842.70

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Solution

The fourth proportional to 295,075.20, 442,612.80 and 81,842.70 is: 122,764.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,075.20 : 442,612.80 = 81,842.70 : x
  2. Step 2: Convert to fraction form
    295,075.20/442,612.80 = 81,842.70/x
  3. Step 3: Cross multiply
    295,075.20x = 442,612.80 × 81,842.70
  4. Step 4: Simplify right side
    295,075.20x = 36,224,626,606.56
  5. Step 5: Solve for x
    x = 36,224,626,606.56/295,075.20
  6. Step 6: Final answer
    x = 122,764.05

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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.