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Finding the Fourth Proportional to 100,447.93, 138,608.04 and 60,160.63

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Solution

The fourth proportional to 100,447.93, 138,608.04 and 60,160.63 is: 83,015.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,447.93 : 138,608.04 = 60,160.63 : x
  2. Step 2: Convert to fraction form
    100,447.93/138,608.04 = 60,160.63/x
  3. Step 3: Cross multiply
    100,447.93x = 138,608.04 × 60,160.63
  4. Step 4: Simplify right side
    100,447.93x = 8,338,747,009.47
  5. Step 5: Solve for x
    x = 8,338,747,009.47/100,447.93
  6. Step 6: Final answer
    x = 83,015.62

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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.