Home / 209,789.48-289,487.38-124,894.92

Finding the Fourth Proportional to 209,789.48, 289,487.38 and 124,894.92

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Solution

The fourth proportional to 209,789.48, 289,487.38 and 124,894.92 is: 172,341.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,789.48 : 289,487.38 = 124,894.92 : x
  2. Step 2: Convert to fraction form
    209,789.48/289,487.38 = 124,894.92/x
  3. Step 3: Cross multiply
    209,789.48x = 289,487.38 × 124,894.92
  4. Step 4: Simplify right side
    209,789.48x = 36,155,503,166.11
  5. Step 5: Solve for x
    x = 36,155,503,166.11/209,789.48
  6. Step 6: Final answer
    x = 172,341.83

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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.