Home / 136,484.29-188,348.75-79,134.85

Finding the Fourth Proportional to 136,484.29, 188,348.75 and 79,134.85

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Solution

The fourth proportional to 136,484.29, 188,348.75 and 79,134.85 is: 109,206.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,484.29 : 188,348.75 = 79,134.85 : x
  2. Step 2: Convert to fraction form
    136,484.29/188,348.75 = 79,134.85/x
  3. Step 3: Cross multiply
    136,484.29x = 188,348.75 × 79,134.85
  4. Step 4: Simplify right side
    136,484.29x = 14,904,950,078.94
  5. Step 5: Solve for x
    x = 14,904,950,078.94/136,484.29
  6. Step 6: Final answer
    x = 109,206.34

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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.