Home / 209,551.17-289,186.86-129,025.16

Finding the Fourth Proportional to 209,551.17, 289,186.86 and 129,025.16

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Solution

The fourth proportional to 209,551.17, 289,186.86 and 129,025.16 is: 178,058.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,551.17 : 289,186.86 = 129,025.16 : x
  2. Step 2: Convert to fraction form
    209,551.17/289,186.86 = 129,025.16/x
  3. Step 3: Cross multiply
    209,551.17x = 289,186.86 × 129,025.16
  4. Step 4: Simplify right side
    209,551.17x = 37,312,378,790.34
  5. Step 5: Solve for x
    x = 37,312,378,790.34/209,551.17
  6. Step 6: Final answer
    x = 178,058.56

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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.