Home / 80,183.24-120,143.52-42,703.52

Finding the Fourth Proportional to 80,183.24, 120,143.52 and 42,703.52

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Solution

The fourth proportional to 80,183.24, 120,143.52 and 42,703.52 is: 63,985.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,183.24 : 120,143.52 = 42,703.52 : x
  2. Step 2: Convert to fraction form
    80,183.24/120,143.52 = 42,703.52/x
  3. Step 3: Cross multiply
    80,183.24x = 120,143.52 × 42,703.52
  4. Step 4: Simplify right side
    80,183.24x = 5,130,551,209.19
  5. Step 5: Solve for x
    x = 5,130,551,209.19/80,183.24
  6. Step 6: Final answer
    x = 63,985.33

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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.