Home / 189,217.89-261,107.35-104,333.13

Finding the Fourth Proportional to 189,217.89, 261,107.35 and 104,333.13

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Solution

The fourth proportional to 189,217.89, 261,107.35 and 104,333.13 is: 143,972.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,217.89 : 261,107.35 = 104,333.13 : x
  2. Step 2: Convert to fraction form
    189,217.89/261,107.35 = 104,333.13/x
  3. Step 3: Cross multiply
    189,217.89x = 261,107.35 × 104,333.13
  4. Step 4: Simplify right side
    189,217.89x = 27,242,146,830.67
  5. Step 5: Solve for x
    x = 27,242,146,830.67/189,217.89
  6. Step 6: Final answer
    x = 143,972.36

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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.