Home / 122,928.86-169,628.63-69,212.90

Finding the Fourth Proportional to 122,928.86, 169,628.63 and 69,212.90

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Solution

The fourth proportional to 122,928.86, 169,628.63 and 69,212.90 is: 95,506.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,928.86 : 169,628.63 = 69,212.90 : x
  2. Step 2: Convert to fraction form
    122,928.86/169,628.63 = 69,212.90/x
  3. Step 3: Cross multiply
    122,928.86x = 169,628.63 × 69,212.90
  4. Step 4: Simplify right side
    122,928.86x = 11,740,488,211.12
  5. Step 5: Solve for x
    x = 11,740,488,211.12/122,928.86
  6. Step 6: Final answer
    x = 95,506.37

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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.