Home / 136,616.46-188,530.35-76,187.17

Finding the Fourth Proportional to 136,616.46, 188,530.35 and 76,187.17

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Solution

The fourth proportional to 136,616.46, 188,530.35 and 76,187.17 is: 105,138.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,616.46 : 188,530.35 = 76,187.17 : x
  2. Step 2: Convert to fraction form
    136,616.46/188,530.35 = 76,187.17/x
  3. Step 3: Cross multiply
    136,616.46x = 188,530.35 × 76,187.17
  4. Step 4: Simplify right side
    136,616.46x = 14,363,594,296.94
  5. Step 5: Solve for x
    x = 14,363,594,296.94/136,616.46
  6. Step 6: Final answer
    x = 105,138.09

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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.