Home / 175,319.60-262,979.40-81,834.80

Finding the Fourth Proportional to 175,319.60, 262,979.40 and 81,834.80

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Solution

The fourth proportional to 175,319.60, 262,979.40 and 81,834.80 is: 122,752.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,319.60 : 262,979.40 = 81,834.80 : x
  2. Step 2: Convert to fraction form
    175,319.60/262,979.40 = 81,834.80/x
  3. Step 3: Cross multiply
    175,319.60x = 262,979.40 × 81,834.80
  4. Step 4: Simplify right side
    175,319.60x = 21,520,866,603.12
  5. Step 5: Solve for x
    x = 21,520,866,603.12/175,319.60
  6. Step 6: Final answer
    x = 122,752.20

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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.