Home / 105,436.80-158,155.20-95,587.20

Finding the Fourth Proportional to 105,436.80, 158,155.20 and 95,587.20

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Solution

The fourth proportional to 105,436.80, 158,155.20 and 95,587.20 is: 143,380.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,436.80 : 158,155.20 = 95,587.20 : x
  2. Step 2: Convert to fraction form
    105,436.80/158,155.20 = 95,587.20/x
  3. Step 3: Cross multiply
    105,436.80x = 158,155.20 × 95,587.20
  4. Step 4: Simplify right side
    105,436.80x = 15,117,612,733.44
  5. Step 5: Solve for x
    x = 15,117,612,733.44/105,436.80
  6. Step 6: Final answer
    x = 143,380.80

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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.