Home / 148,306.64-222,492.69-81,712.49

Finding the Fourth Proportional to 148,306.64, 222,492.69 and 81,712.49

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Solution

The fourth proportional to 148,306.64, 222,492.69 and 81,712.49 is: 122,586.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,306.64 : 222,492.69 = 81,712.49 : x
  2. Step 2: Convert to fraction form
    148,306.64/222,492.69 = 81,712.49/x
  3. Step 3: Cross multiply
    148,306.64x = 222,492.69 × 81,712.49
  4. Step 4: Simplify right side
    148,306.64x = 18,180,430,594.23
  5. Step 5: Solve for x
    x = 18,180,430,594.23/148,306.64
  6. Step 6: Final answer
    x = 122,586.76

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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.