Home / 136,522.40-188,401.78-76,096.87

Finding the Fourth Proportional to 136,522.40, 188,401.78 and 76,096.87

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Solution

The fourth proportional to 136,522.40, 188,401.78 and 76,096.87 is: 105,014.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,522.40 : 188,401.78 = 76,096.87 : x
  2. Step 2: Convert to fraction form
    136,522.40/188,401.78 = 76,096.87/x
  3. Step 3: Cross multiply
    136,522.40x = 188,401.78 × 76,096.87
  4. Step 4: Simplify right side
    136,522.40x = 14,336,785,379.94
  5. Step 5: Solve for x
    x = 14,336,785,379.94/136,522.40
  6. Step 6: Final answer
    x = 105,014.17

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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.