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Finding the Fourth Proportional to 76,233.60, 114,350.40 and 74,775.60

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Solution

The fourth proportional to 76,233.60, 114,350.40 and 74,775.60 is: 112,163.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,233.60 : 114,350.40 = 74,775.60 : x
  2. Step 2: Convert to fraction form
    76,233.60/114,350.40 = 74,775.60/x
  3. Step 3: Cross multiply
    76,233.60x = 114,350.40 × 74,775.60
  4. Step 4: Simplify right side
    76,233.60x = 8,550,619,770.24
  5. Step 5: Solve for x
    x = 8,550,619,770.24/76,233.60
  6. Step 6: Final answer
    x = 112,163.40

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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.