Home / 155,117.94-232,704.18-80,217.69

Finding the Fourth Proportional to 155,117.94, 232,704.18 and 80,217.69

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Solution

The fourth proportional to 155,117.94, 232,704.18 and 80,217.69 is: 120,340.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,117.94 : 232,704.18 = 80,217.69 : x
  2. Step 2: Convert to fraction form
    155,117.94/232,704.18 = 80,217.69/x
  3. Step 3: Cross multiply
    155,117.94x = 232,704.18 × 80,217.69
  4. Step 4: Simplify right side
    155,117.94x = 18,666,991,772.94
  5. Step 5: Solve for x
    x = 18,666,991,772.94/155,117.94
  6. Step 6: Final answer
    x = 120,340.64

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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.