Home / 128,434.20-192,651.30-93,004.80

Finding the Fourth Proportional to 128,434.20, 192,651.30 and 93,004.80

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Solution

The fourth proportional to 128,434.20, 192,651.30 and 93,004.80 is: 139,507.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,434.20 : 192,651.30 = 93,004.80 : x
  2. Step 2: Convert to fraction form
    128,434.20/192,651.30 = 93,004.80/x
  3. Step 3: Cross multiply
    128,434.20x = 192,651.30 × 93,004.80
  4. Step 4: Simplify right side
    128,434.20x = 17,917,495,626.24
  5. Step 5: Solve for x
    x = 17,917,495,626.24/128,434.20
  6. Step 6: Final answer
    x = 139,507.20

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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.