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Finding the Fourth Proportional to 123,151.96, 169,947.30 and 69,435.93

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Solution

The fourth proportional to 123,151.96, 169,947.30 and 69,435.93 is: 95,820.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,151.96 : 169,947.30 = 69,435.93 : x
  2. Step 2: Convert to fraction form
    123,151.96/169,947.30 = 69,435.93/x
  3. Step 3: Cross multiply
    123,151.96x = 169,947.30 × 69,435.93
  4. Step 4: Simplify right side
    123,151.96x = 11,800,448,054.44
  5. Step 5: Solve for x
    x = 11,800,448,054.44/123,151.96
  6. Step 6: Final answer
    x = 95,820.23

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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.