Home / 175,074.30-262,309.05-81,387.90

Finding the Fourth Proportional to 175,074.30, 262,309.05 and 81,387.90

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Solution

The fourth proportional to 175,074.30, 262,309.05 and 81,387.90 is: 121,941.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,074.30 : 262,309.05 = 81,387.90 : x
  2. Step 2: Convert to fraction form
    175,074.30/262,309.05 = 81,387.90/x
  3. Step 3: Cross multiply
    175,074.30x = 262,309.05 × 81,387.90
  4. Step 4: Simplify right side
    175,074.30x = 21,348,782,730.50
  5. Step 5: Solve for x
    x = 21,348,782,730.50/175,074.30
  6. Step 6: Final answer
    x = 121,941.27

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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.