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Finding the Fourth Proportional to 172,562.40, 258,940.80 and 67,367.70

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Solution

The fourth proportional to 172,562.40, 258,940.80 and 67,367.70 is: 101,089.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,562.40 : 258,940.80 = 67,367.70 : x
  2. Step 2: Convert to fraction form
    172,562.40/258,940.80 = 67,367.70/x
  3. Step 3: Cross multiply
    172,562.40x = 258,940.80 × 67,367.70
  4. Step 4: Simplify right side
    172,562.40x = 17,444,246,132.16
  5. Step 5: Solve for x
    x = 17,444,246,132.16/172,562.40
  6. Step 6: Final answer
    x = 101,089.50

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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.