Home / 172,394.12-258,595.50-47,736.20

Finding the Fourth Proportional to 172,394.12, 258,595.50 and 47,736.20

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Solution

The fourth proportional to 172,394.12, 258,595.50 and 47,736.20 is: 71,605.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,394.12 : 258,595.50 = 47,736.20 : x
  2. Step 2: Convert to fraction form
    172,394.12/258,595.50 = 47,736.20/x
  3. Step 3: Cross multiply
    172,394.12x = 258,595.50 × 47,736.20
  4. Step 4: Simplify right side
    172,394.12x = 12,344,366,507.10
  5. Step 5: Solve for x
    x = 12,344,366,507.10/172,394.12
  6. Step 6: Final answer
    x = 71,605.50

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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.