Home / 148,121.18-204,194.59-105,605.90

Finding the Fourth Proportional to 148,121.18, 204,194.59 and 105,605.90

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Solution

The fourth proportional to 148,121.18, 204,194.59 and 105,605.90 is: 145,584.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,121.18 : 204,194.59 = 105,605.90 : x
  2. Step 2: Convert to fraction form
    148,121.18/204,194.59 = 105,605.90/x
  3. Step 3: Cross multiply
    148,121.18x = 204,194.59 × 105,605.90
  4. Step 4: Simplify right side
    148,121.18x = 21,564,153,452.08
  5. Step 5: Solve for x
    x = 21,564,153,452.08/148,121.18
  6. Step 6: Final answer
    x = 145,584.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.