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Finding the Fourth Proportional to 172,685.52, 258,544.41 and 130,432.68

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Solution

The fourth proportional to 172,685.52, 258,544.41 and 130,432.68 is: 195,283.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,685.52 : 258,544.41 = 130,432.68 : x
  2. Step 2: Convert to fraction form
    172,685.52/258,544.41 = 130,432.68/x
  3. Step 3: Cross multiply
    172,685.52x = 258,544.41 × 130,432.68
  4. Step 4: Simplify right side
    172,685.52x = 33,722,639,806.20
  5. Step 5: Solve for x
    x = 33,722,639,806.20/172,685.52
  6. Step 6: Final answer
    x = 195,283.54

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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.