Home / 97,811.20-146,546.70-45,112.60

Finding the Fourth Proportional to 97,811.20, 146,546.70 and 45,112.60

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Solution

The fourth proportional to 97,811.20, 146,546.70 and 45,112.60 is: 67,590.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,811.20 : 146,546.70 = 45,112.60 : x
  2. Step 2: Convert to fraction form
    97,811.20/146,546.70 = 45,112.60/x
  3. Step 3: Cross multiply
    97,811.20x = 146,546.70 × 45,112.60
  4. Step 4: Simplify right side
    97,811.20x = 6,611,102,658.42
  5. Step 5: Solve for x
    x = 6,611,102,658.42/97,811.20
  6. Step 6: Final answer
    x = 67,590.45

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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.