Home / 124,765.75-172,177.95-68,178.34

Finding the Fourth Proportional to 124,765.75, 172,177.95 and 68,178.34

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Solution

The fourth proportional to 124,765.75, 172,177.95 and 68,178.34 is: 94,086.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,765.75 : 172,177.95 = 68,178.34 : x
  2. Step 2: Convert to fraction form
    124,765.75/172,177.95 = 68,178.34/x
  3. Step 3: Cross multiply
    124,765.75x = 172,177.95 × 68,178.34
  4. Step 4: Simplify right side
    124,765.75x = 11,738,806,815.60
  5. Step 5: Solve for x
    x = 11,738,806,815.60/124,765.75
  6. Step 6: Final answer
    x = 94,086.77

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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.