Home / 122,876.51-169,569.55-69,161.82

Finding the Fourth Proportional to 122,876.51, 169,569.55 and 69,161.82

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Solution

The fourth proportional to 122,876.51, 169,569.55 and 69,161.82 is: 95,443.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,876.51 : 169,569.55 = 69,161.82 : x
  2. Step 2: Convert to fraction form
    122,876.51/169,569.55 = 69,161.82/x
  3. Step 3: Cross multiply
    122,876.51x = 169,569.55 × 69,161.82
  4. Step 4: Simplify right side
    122,876.51x = 11,727,738,145.15
  5. Step 5: Solve for x
    x = 11,727,738,145.15/122,876.51
  6. Step 6: Final answer
    x = 95,443.29

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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.