Home / 131,355.46-181,200.49-80,392.89

Finding the Fourth Proportional to 131,355.46, 181,200.49 and 80,392.89

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Solution

The fourth proportional to 131,355.46, 181,200.49 and 80,392.89 is: 110,899.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,355.46 : 181,200.49 = 80,392.89 : x
  2. Step 2: Convert to fraction form
    131,355.46/181,200.49 = 80,392.89/x
  3. Step 3: Cross multiply
    131,355.46x = 181,200.49 × 80,392.89
  4. Step 4: Simplify right side
    131,355.46x = 14,567,230,859.53
  5. Step 5: Solve for x
    x = 14,567,230,859.53/131,355.46
  6. Step 6: Final answer
    x = 110,899.32

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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.