Home / 209,073.15-288,521.29-113,579.92

Finding the Fourth Proportional to 209,073.15, 288,521.29 and 113,579.92

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Solution

The fourth proportional to 209,073.15, 288,521.29 and 113,579.92 is: 156,740.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,073.15 : 288,521.29 = 113,579.92 : x
  2. Step 2: Convert to fraction form
    209,073.15/288,521.29 = 113,579.92/x
  3. Step 3: Cross multiply
    209,073.15x = 288,521.29 × 113,579.92
  4. Step 4: Simplify right side
    209,073.15x = 32,770,225,539.12
  5. Step 5: Solve for x
    x = 32,770,225,539.12/209,073.15
  6. Step 6: Final answer
    x = 156,740.48

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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.