Home / 122,919.72-169,632.41-69,206.70

Finding the Fourth Proportional to 122,919.72, 169,632.41 and 69,206.70

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Solution

The fourth proportional to 122,919.72, 169,632.41 and 69,206.70 is: 95,507.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,919.72 : 169,632.41 = 69,206.70 : x
  2. Step 2: Convert to fraction form
    122,919.72/169,632.41 = 69,206.70/x
  3. Step 3: Cross multiply
    122,919.72x = 169,632.41 × 69,206.70
  4. Step 4: Simplify right side
    122,919.72x = 11,739,699,309.15
  5. Step 5: Solve for x
    x = 11,739,699,309.15/122,919.72
  6. Step 6: Final answer
    x = 95,507.05

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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.