Home / 189,677.15-261,751.41-103,634.29

Finding the Fourth Proportional to 189,677.15, 261,751.41 and 103,634.29

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Solution

The fourth proportional to 189,677.15, 261,751.41 and 103,634.29 is: 143,013.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,677.15 : 261,751.41 = 103,634.29 : x
  2. Step 2: Convert to fraction form
    189,677.15/261,751.41 = 103,634.29/x
  3. Step 3: Cross multiply
    189,677.15x = 261,751.41 × 103,634.29
  4. Step 4: Simplify right side
    189,677.15x = 27,126,421,531.85
  5. Step 5: Solve for x
    x = 27,126,421,531.85/189,677.15
  6. Step 6: Final answer
    x = 143,013.65

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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.