Home / 99,778.32-149,667.12-40,600.80

Finding the Fourth Proportional to 99,778.32, 149,667.12 and 40,600.80

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Solution

The fourth proportional to 99,778.32, 149,667.12 and 40,600.80 is: 60,901.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,778.32 : 149,667.12 = 40,600.80 : x
  2. Step 2: Convert to fraction form
    99,778.32/149,667.12 = 40,600.80/x
  3. Step 3: Cross multiply
    99,778.32x = 149,667.12 × 40,600.80
  4. Step 4: Simplify right side
    99,778.32x = 6,076,604,805.70
  5. Step 5: Solve for x
    x = 6,076,604,805.70/99,778.32
  6. Step 6: Final answer
    x = 60,901.05

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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.