Home / 136,011.89-187,684.46-75,578.70

Finding the Fourth Proportional to 136,011.89, 187,684.46 and 75,578.70

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Solution

The fourth proportional to 136,011.89, 187,684.46 and 75,578.70 is: 104,291.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,011.89 : 187,684.46 = 75,578.70 : x
  2. Step 2: Convert to fraction form
    136,011.89/187,684.46 = 75,578.70/x
  3. Step 3: Cross multiply
    136,011.89x = 187,684.46 × 75,578.70
  4. Step 4: Simplify right side
    136,011.89x = 14,184,947,119.11
  5. Step 5: Solve for x
    x = 14,184,947,119.11/136,011.89
  6. Step 6: Final answer
    x = 104,291.97

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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.