Home / 120,517.78-180,718.35-41,604.34

Finding the Fourth Proportional to 120,517.78, 180,718.35 and 41,604.34

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Solution

The fourth proportional to 120,517.78, 180,718.35 and 41,604.34 is: 62,386.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,517.78 : 180,718.35 = 41,604.34 : x
  2. Step 2: Convert to fraction form
    120,517.78/180,718.35 = 41,604.34/x
  3. Step 3: Cross multiply
    120,517.78x = 180,718.35 × 41,604.34
  4. Step 4: Simplify right side
    120,517.78x = 7,518,667,677.64
  5. Step 5: Solve for x
    x = 7,518,667,677.64/120,517.78
  6. Step 6: Final answer
    x = 62,386.38

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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.