Home / 122,710.40-169,358.28-68,999.84

Finding the Fourth Proportional to 122,710.40, 169,358.28 and 68,999.84

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Solution

The fourth proportional to 122,710.40, 169,358.28 and 68,999.84 is: 95,229.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,710.40 : 169,358.28 = 68,999.84 : x
  2. Step 2: Convert to fraction form
    122,710.40/169,358.28 = 68,999.84/x
  3. Step 3: Cross multiply
    122,710.40x = 169,358.28 × 68,999.84
  4. Step 4: Simplify right side
    122,710.40x = 11,685,694,222.68
  5. Step 5: Solve for x
    x = 11,685,694,222.68/122,710.40
  6. Step 6: Final answer
    x = 95,229.86

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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.