Home / 172,417.20-258,625.80-113,319.60

Finding the Fourth Proportional to 172,417.20, 258,625.80 and 113,319.60

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Solution

The fourth proportional to 172,417.20, 258,625.80 and 113,319.60 is: 169,979.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,417.20 : 258,625.80 = 113,319.60 : x
  2. Step 2: Convert to fraction form
    172,417.20/258,625.80 = 113,319.60/x
  3. Step 3: Cross multiply
    172,417.20x = 258,625.80 × 113,319.60
  4. Step 4: Simplify right side
    172,417.20x = 29,307,372,205.68
  5. Step 5: Solve for x
    x = 29,307,372,205.68/172,417.20
  6. Step 6: Final answer
    x = 169,979.40

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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.