Home / 136,954.47-188,984.85-76,516.71

Finding the Fourth Proportional to 136,954.47, 188,984.85 and 76,516.71

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Solution

The fourth proportional to 136,954.47, 188,984.85 and 76,516.71 is: 105,586.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,954.47 : 188,984.85 = 76,516.71 : x
  2. Step 2: Convert to fraction form
    136,954.47/188,984.85 = 76,516.71/x
  3. Step 3: Cross multiply
    136,954.47x = 188,984.85 × 76,516.71
  4. Step 4: Simplify right side
    136,954.47x = 14,460,498,961.84
  5. Step 5: Solve for x
    x = 14,460,498,961.84/136,954.47
  6. Step 6: Final answer
    x = 105,586.18

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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.