Home / 122,785.20-169,441.86-69,070.14

Finding the Fourth Proportional to 122,785.20, 169,441.86 and 69,070.14

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Solution

The fourth proportional to 122,785.20, 169,441.86 and 69,070.14 is: 95,315.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,785.20 : 169,441.86 = 69,070.14 : x
  2. Step 2: Convert to fraction form
    122,785.20/169,441.86 = 69,070.14/x
  3. Step 3: Cross multiply
    122,785.20x = 169,441.86 × 69,070.14
  4. Step 4: Simplify right side
    122,785.20x = 11,703,372,992.06
  5. Step 5: Solve for x
    x = 11,703,372,992.06/122,785.20
  6. Step 6: Final answer
    x = 95,315.83

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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.