Home / 115,538.20-173,307.30-40,742.80

Finding the Fourth Proportional to 115,538.20, 173,307.30 and 40,742.80

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Solution

The fourth proportional to 115,538.20, 173,307.30 and 40,742.80 is: 61,114.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,538.20 : 173,307.30 = 40,742.80 : x
  2. Step 2: Convert to fraction form
    115,538.20/173,307.30 = 40,742.80/x
  3. Step 3: Cross multiply
    115,538.20x = 173,307.30 × 40,742.80
  4. Step 4: Simplify right side
    115,538.20x = 7,061,024,662.44
  5. Step 5: Solve for x
    x = 7,061,024,662.44/115,538.20
  6. Step 6: Final answer
    x = 61,114.20

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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.