Home / 122,294.28-168,694.60-76,900.40

Finding the Fourth Proportional to 122,294.28, 168,694.60 and 76,900.40

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Solution

The fourth proportional to 122,294.28, 168,694.60 and 76,900.40 is: 106,077.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,294.28 : 168,694.60 = 76,900.40 : x
  2. Step 2: Convert to fraction form
    122,294.28/168,694.60 = 76,900.40/x
  3. Step 3: Cross multiply
    122,294.28x = 168,694.60 × 76,900.40
  4. Step 4: Simplify right side
    122,294.28x = 12,972,682,217.84
  5. Step 5: Solve for x
    x = 12,972,682,217.84/122,294.28
  6. Step 6: Final answer
    x = 106,077.59

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1.5x scale

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.