Home / 179,641.40-247,906.90-99,072.20

Finding the Fourth Proportional to 179,641.40, 247,906.90 and 99,072.20

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Solution

The fourth proportional to 179,641.40, 247,906.90 and 99,072.20 is: 136,720.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,641.40 : 247,906.90 = 99,072.20 : x
  2. Step 2: Convert to fraction form
    179,641.40/247,906.90 = 99,072.20/x
  3. Step 3: Cross multiply
    179,641.40x = 247,906.90 × 99,072.20
  4. Step 4: Simplify right side
    179,641.40x = 24,560,681,978.18
  5. Step 5: Solve for x
    x = 24,560,681,978.18/179,641.40
  6. Step 6: Final answer
    x = 136,720.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.