Home / 209,585.36-289,152.78-140,691.62

Finding the Fourth Proportional to 209,585.36, 289,152.78 and 140,691.62

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Solution

The fourth proportional to 209,585.36, 289,152.78 and 140,691.62 is: 194,104.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,585.36 : 289,152.78 = 140,691.62 : x
  2. Step 2: Convert to fraction form
    209,585.36/289,152.78 = 140,691.62/x
  3. Step 3: Cross multiply
    209,585.36x = 289,152.78 × 140,691.62
  4. Step 4: Simplify right side
    209,585.36x = 40,681,373,045.70
  5. Step 5: Solve for x
    x = 40,681,373,045.70/209,585.36
  6. Step 6: Final answer
    x = 194,104.08

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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.