Home / 148,555.76-204,940.53-88,128.95

Finding the Fourth Proportional to 148,555.76, 204,940.53 and 88,128.95

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Solution

The fourth proportional to 148,555.76, 204,940.53 and 88,128.95 is: 121,578.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,555.76 : 204,940.53 = 88,128.95 : x
  2. Step 2: Convert to fraction form
    148,555.76/204,940.53 = 88,128.95/x
  3. Step 3: Cross multiply
    148,555.76x = 204,940.53 × 88,128.95
  4. Step 4: Simplify right side
    148,555.76x = 18,061,192,696.64
  5. Step 5: Solve for x
    x = 18,061,192,696.64/148,555.76
  6. Step 6: Final answer
    x = 121,578.55

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1.5x scale

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.