Home / 209,615.26-289,224.21-124,715.74

Finding the Fourth Proportional to 209,615.26, 289,224.21 and 124,715.74

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Solution

The fourth proportional to 209,615.26, 289,224.21 and 124,715.74 is: 172,081.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,615.26 : 289,224.21 = 124,715.74 : x
  2. Step 2: Convert to fraction form
    209,615.26/289,224.21 = 124,715.74/x
  3. Step 3: Cross multiply
    209,615.26x = 289,224.21 × 124,715.74
  4. Step 4: Simplify right side
    209,615.26x = 36,070,811,376.07
  5. Step 5: Solve for x
    x = 36,070,811,376.07/209,615.26
  6. Step 6: Final answer
    x = 172,081.04

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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.