Home / 189,220.20-261,124.42-104,335.40

Finding the Fourth Proportional to 189,220.20, 261,124.42 and 104,335.40

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Solution

The fourth proportional to 189,220.20, 261,124.42 and 104,335.40 is: 143,983.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,220.20 : 261,124.42 = 104,335.40 : x
  2. Step 2: Convert to fraction form
    189,220.20/261,124.42 = 104,335.40/x
  3. Step 3: Cross multiply
    189,220.20x = 261,124.42 × 104,335.40
  4. Step 4: Simplify right side
    189,220.20x = 27,244,520,810.47
  5. Step 5: Solve for x
    x = 27,244,520,810.47/189,220.20
  6. Step 6: Final answer
    x = 143,983.15

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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.