Home / 209,145.24-288,627.39-123,088.68

Finding the Fourth Proportional to 209,145.24, 288,627.39 and 123,088.68

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Solution

The fourth proportional to 209,145.24, 288,627.39 and 123,088.68 is: 169,866.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,145.24 : 288,627.39 = 123,088.68 : x
  2. Step 2: Convert to fraction form
    209,145.24/288,627.39 = 123,088.68/x
  3. Step 3: Cross multiply
    209,145.24x = 288,627.39 × 123,088.68
  4. Step 4: Simplify right side
    209,145.24x = 35,526,764,446.95
  5. Step 5: Solve for x
    x = 35,526,764,446.95/209,145.24
  6. Step 6: Final answer
    x = 169,866.47

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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.