Home / 209,604.16-289,445.87-133,147.90

Finding the Fourth Proportional to 209,604.16, 289,445.87 and 133,147.90

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Solution

The fourth proportional to 209,604.16, 289,445.87 and 133,147.90 is: 183,866.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,604.16 : 289,445.87 = 133,147.90 : x
  2. Step 2: Convert to fraction form
    209,604.16/289,445.87 = 133,147.90/x
  3. Step 3: Cross multiply
    209,604.16x = 289,445.87 × 133,147.90
  4. Step 4: Simplify right side
    209,604.16x = 38,539,107,641.20
  5. Step 5: Solve for x
    x = 38,539,107,641.20/209,604.16
  6. Step 6: Final answer
    x = 183,866.14

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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.