Home / 124,640.70-172,002.78-68,052.12

Finding the Fourth Proportional to 124,640.70, 172,002.78 and 68,052.12

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Solution

The fourth proportional to 124,640.70, 172,002.78 and 68,052.12 is: 93,911.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,640.70 : 172,002.78 = 68,052.12 : x
  2. Step 2: Convert to fraction form
    124,640.70/172,002.78 = 68,052.12/x
  3. Step 3: Cross multiply
    124,640.70x = 172,002.78 × 68,052.12
  4. Step 4: Simplify right side
    124,640.70x = 11,705,153,824.89
  5. Step 5: Solve for x
    x = 11,705,153,824.89/124,640.70
  6. Step 6: Final answer
    x = 93,911.17

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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.