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Finding the Fourth Proportional to 91,064.62, 136,596.30 and 75,449.44

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Solution

The fourth proportional to 91,064.62, 136,596.30 and 75,449.44 is: 113,173.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,064.62 : 136,596.30 = 75,449.44 : x
  2. Step 2: Convert to fraction form
    91,064.62/136,596.30 = 75,449.44/x
  3. Step 3: Cross multiply
    91,064.62x = 136,596.30 × 75,449.44
  4. Step 4: Simplify right side
    91,064.62x = 10,306,114,341.07
  5. Step 5: Solve for x
    x = 10,306,114,341.07/91,064.62
  6. Step 6: Final answer
    x = 113,173.64

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1.5x scale

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.