Home / 125,127.75-172,676.34-68,541.15

Finding the Fourth Proportional to 125,127.75, 172,676.34 and 68,541.15

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Solution

The fourth proportional to 125,127.75, 172,676.34 and 68,541.15 is: 94,586.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,127.75 : 172,676.34 = 68,541.15 : x
  2. Step 2: Convert to fraction form
    125,127.75/172,676.34 = 68,541.15/x
  3. Step 3: Cross multiply
    125,127.75x = 172,676.34 × 68,541.15
  4. Step 4: Simplify right side
    125,127.75x = 11,835,434,921.39
  5. Step 5: Solve for x
    x = 11,835,434,921.39/125,127.75
  6. Step 6: Final answer
    x = 94,586.81

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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.