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Finding the Fourth Proportional to 175,093.80, 262,640.70 and 86,520.30

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Solution

The fourth proportional to 175,093.80, 262,640.70 and 86,520.30 is: 129,780.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,093.80 : 262,640.70 = 86,520.30 : x
  2. Step 2: Convert to fraction form
    175,093.80/262,640.70 = 86,520.30/x
  3. Step 3: Cross multiply
    175,093.80x = 262,640.70 × 86,520.30
  4. Step 4: Simplify right side
    175,093.80x = 22,723,752,156.21
  5. Step 5: Solve for x
    x = 22,723,752,156.21/175,093.80
  6. Step 6: Final answer
    x = 129,780.45

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1.5x scale

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.