Home / 120,617.23-180,932.90-40,648.50

Finding the Fourth Proportional to 120,617.23, 180,932.90 and 40,648.50

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Solution

The fourth proportional to 120,617.23, 180,932.90 and 40,648.50 is: 60,975.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,617.23 : 180,932.90 = 40,648.50 : x
  2. Step 2: Convert to fraction form
    120,617.23/180,932.90 = 40,648.50/x
  3. Step 3: Cross multiply
    120,617.23x = 180,932.90 × 40,648.50
  4. Step 4: Simplify right side
    120,617.23x = 7,354,650,985.65
  5. Step 5: Solve for x
    x = 7,354,650,985.65/120,617.23
  6. Step 6: Final answer
    x = 60,975.13

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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.