Home / 124,712.70-172,100.73-68,124.30

Finding the Fourth Proportional to 124,712.70, 172,100.73 and 68,124.30

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Solution

The fourth proportional to 124,712.70, 172,100.73 and 68,124.30 is: 94,010.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,712.70 : 172,100.73 = 68,124.30 : x
  2. Step 2: Convert to fraction form
    124,712.70/172,100.73 = 68,124.30/x
  3. Step 3: Cross multiply
    124,712.70x = 172,100.73 × 68,124.30
  4. Step 4: Simplify right side
    124,712.70x = 11,724,241,760.74
  5. Step 5: Solve for x
    x = 11,724,241,760.74/124,712.70
  6. Step 6: Final answer
    x = 94,010.01

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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.