Home / 221,875.60-306,164.46-131,234.80

Finding the Fourth Proportional to 221,875.60, 306,164.46 and 131,234.80

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Solution

The fourth proportional to 221,875.60, 306,164.46 and 131,234.80 is: 181,089.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,875.60 : 306,164.46 = 131,234.80 : x
  2. Step 2: Convert to fraction form
    221,875.60/306,164.46 = 131,234.80/x
  3. Step 3: Cross multiply
    221,875.60x = 306,164.46 × 131,234.80
  4. Step 4: Simplify right side
    221,875.60x = 40,179,431,675.21
  5. Step 5: Solve for x
    x = 40,179,431,675.21/221,875.60
  6. Step 6: Final answer
    x = 181,089.91

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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.