Home / 120,960.42-181,523.19-42,073.86

Finding the Fourth Proportional to 120,960.42, 181,523.19 and 42,073.86

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Solution

The fourth proportional to 120,960.42, 181,523.19 and 42,073.86 is: 63,139.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,960.42 : 181,523.19 = 42,073.86 : x
  2. Step 2: Convert to fraction form
    120,960.42/181,523.19 = 42,073.86/x
  3. Step 3: Cross multiply
    120,960.42x = 181,523.19 × 42,073.86
  4. Step 4: Simplify right side
    120,960.42x = 7,637,381,282.81
  5. Step 5: Solve for x
    x = 7,637,381,282.81/120,960.42
  6. Step 6: Final answer
    x = 63,139.51

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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.