Home / 136,827.36-205,073.37-77,712.75

Finding the Fourth Proportional to 136,827.36, 205,073.37 and 77,712.75

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Solution

The fourth proportional to 136,827.36, 205,073.37 and 77,712.75 is: 116,473.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,827.36 : 205,073.37 = 77,712.75 : x
  2. Step 2: Convert to fraction form
    136,827.36/205,073.37 = 77,712.75/x
  3. Step 3: Cross multiply
    136,827.36x = 205,073.37 × 77,712.75
  4. Step 4: Simplify right side
    136,827.36x = 15,936,815,534.47
  5. Step 5: Solve for x
    x = 15,936,815,534.47/136,827.36
  6. Step 6: Final answer
    x = 116,473.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.