Home / 155,271.15-232,740.63-80,315.85

Finding the Fourth Proportional to 155,271.15, 232,740.63 and 80,315.85

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Solution

The fourth proportional to 155,271.15, 232,740.63 and 80,315.85 is: 120,387.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,271.15 : 232,740.63 = 80,315.85 : x
  2. Step 2: Convert to fraction form
    155,271.15/232,740.63 = 80,315.85/x
  3. Step 3: Cross multiply
    155,271.15x = 232,740.63 × 80,315.85
  4. Step 4: Simplify right side
    155,271.15x = 18,692,761,527.99
  5. Step 5: Solve for x
    x = 18,692,761,527.99/155,271.15
  6. Step 6: Final answer
    x = 120,387.86

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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.