Home / 192,359.20-288,538.80-103,785.70

Finding the Fourth Proportional to 192,359.20, 288,538.80 and 103,785.70

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Solution

The fourth proportional to 192,359.20, 288,538.80 and 103,785.70 is: 155,678.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,359.20 : 288,538.80 = 103,785.70 : x
  2. Step 2: Convert to fraction form
    192,359.20/288,538.80 = 103,785.70/x
  3. Step 3: Cross multiply
    192,359.20x = 288,538.80 × 103,785.70
  4. Step 4: Simplify right side
    192,359.20x = 29,946,201,335.16
  5. Step 5: Solve for x
    x = 29,946,201,335.16/192,359.20
  6. Step 6: Final answer
    x = 155,678.55

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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.