Home / 122,772.89-169,378.62-69,045.59

Finding the Fourth Proportional to 122,772.89, 169,378.62 and 69,045.59

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Solution

The fourth proportional to 122,772.89, 169,378.62 and 69,045.59 is: 95,255.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,772.89 : 169,378.62 = 69,045.59 : x
  2. Step 2: Convert to fraction form
    122,772.89/169,378.62 = 69,045.59/x
  3. Step 3: Cross multiply
    122,772.89x = 169,378.62 × 69,045.59
  4. Step 4: Simplify right side
    122,772.89x = 11,694,846,751.29
  5. Step 5: Solve for x
    x = 11,694,846,751.29/122,772.89
  6. Step 6: Final answer
    x = 95,255.94

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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.