Home / 154,019.60-231,106.20-87,510.80

Finding the Fourth Proportional to 154,019.60, 231,106.20 and 87,510.80

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Solution

The fourth proportional to 154,019.60, 231,106.20 and 87,510.80 is: 131,309.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,019.60 : 231,106.20 = 87,510.80 : x
  2. Step 2: Convert to fraction form
    154,019.60/231,106.20 = 87,510.80/x
  3. Step 3: Cross multiply
    154,019.60x = 231,106.20 × 87,510.80
  4. Step 4: Simplify right side
    154,019.60x = 20,224,288,446.96
  5. Step 5: Solve for x
    x = 20,224,288,446.96/154,019.60
  6. Step 6: Final answer
    x = 131,309.84

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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.