Home / 209,072.43-288,521.13-113,579.35

Finding the Fourth Proportional to 209,072.43, 288,521.13 and 113,579.35

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Solution

The fourth proportional to 209,072.43, 288,521.13 and 113,579.35 is: 156,740.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,072.43 : 288,521.13 = 113,579.35 : x
  2. Step 2: Convert to fraction form
    209,072.43/288,521.13 = 113,579.35/x
  3. Step 3: Cross multiply
    209,072.43x = 288,521.13 × 113,579.35
  4. Step 4: Simplify right side
    209,072.43x = 32,770,042,406.67
  5. Step 5: Solve for x
    x = 32,770,042,406.67/209,072.43
  6. Step 6: Final answer
    x = 156,740.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.