Home / 148,046.20-222,069.30-139,881.40

Finding the Fourth Proportional to 148,046.20, 222,069.30 and 139,881.40

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Solution

The fourth proportional to 148,046.20, 222,069.30 and 139,881.40 is: 209,822.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,046.20 : 222,069.30 = 139,881.40 : x
  2. Step 2: Convert to fraction form
    148,046.20/222,069.30 = 139,881.40/x
  3. Step 3: Cross multiply
    148,046.20x = 222,069.30 × 139,881.40
  4. Step 4: Simplify right side
    148,046.20x = 31,063,364,581.02
  5. Step 5: Solve for x
    x = 31,063,364,581.02/148,046.20
  6. Step 6: Final answer
    x = 209,822.10

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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.