Home / 122,981.20-184,439.40-38,741.20

Finding the Fourth Proportional to 122,981.20, 184,439.40 and 38,741.20

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Solution

The fourth proportional to 122,981.20, 184,439.40 and 38,741.20 is: 58,101.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,981.20 : 184,439.40 = 38,741.20 : x
  2. Step 2: Convert to fraction form
    122,981.20/184,439.40 = 38,741.20/x
  3. Step 3: Cross multiply
    122,981.20x = 184,439.40 × 38,741.20
  4. Step 4: Simplify right side
    122,981.20x = 7,145,403,683.28
  5. Step 5: Solve for x
    x = 7,145,403,683.28/122,981.20
  6. Step 6: Final answer
    x = 58,101.59

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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.