Home / 128,015.47-192,042.23-41,432.37

Finding the Fourth Proportional to 128,015.47, 192,042.23 and 41,432.37

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Solution

The fourth proportional to 128,015.47, 192,042.23 and 41,432.37 is: 62,154.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,015.47 : 192,042.23 = 41,432.37 : x
  2. Step 2: Convert to fraction form
    128,015.47/192,042.23 = 41,432.37/x
  3. Step 3: Cross multiply
    128,015.47x = 192,042.23 × 41,432.37
  4. Step 4: Simplify right side
    128,015.47x = 7,956,763,801.66
  5. Step 5: Solve for x
    x = 7,956,763,801.66/128,015.47
  6. Step 6: Final answer
    x = 62,154.70

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1.5x scale

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.