Home / 148,166.60-222,249.90-81,811.40

Finding the Fourth Proportional to 148,166.60, 222,249.90 and 81,811.40

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Solution

The fourth proportional to 148,166.60, 222,249.90 and 81,811.40 is: 122,717.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,166.60 : 222,249.90 = 81,811.40 : x
  2. Step 2: Convert to fraction form
    148,166.60/222,249.90 = 81,811.40/x
  3. Step 3: Cross multiply
    148,166.60x = 222,249.90 × 81,811.40
  4. Step 4: Simplify right side
    148,166.60x = 18,182,575,468.86
  5. Step 5: Solve for x
    x = 18,182,575,468.86/148,166.60
  6. Step 6: Final answer
    x = 122,717.10

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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.