Home / 142,822.80-214,234.20-120,013.20

Finding the Fourth Proportional to 142,822.80, 214,234.20 and 120,013.20

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Solution

The fourth proportional to 142,822.80, 214,234.20 and 120,013.20 is: 180,019.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,822.80 : 214,234.20 = 120,013.20 : x
  2. Step 2: Convert to fraction form
    142,822.80/214,234.20 = 120,013.20/x
  3. Step 3: Cross multiply
    142,822.80x = 214,234.20 × 120,013.20
  4. Step 4: Simplify right side
    142,822.80x = 25,710,931,891.44
  5. Step 5: Solve for x
    x = 25,710,931,891.44/142,822.80
  6. Step 6: Final answer
    x = 180,019.80

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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.