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Finding the Fourth Proportional to 163,713.74, 225,904.75 and 103,261.55

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Solution

The fourth proportional to 163,713.74, 225,904.75 and 103,261.55 is: 142,488.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,713.74 : 225,904.75 = 103,261.55 : x
  2. Step 2: Convert to fraction form
    163,713.74/225,904.75 = 103,261.55/x
  3. Step 3: Cross multiply
    163,713.74x = 225,904.75 × 103,261.55
  4. Step 4: Simplify right side
    163,713.74x = 23,327,273,249.68
  5. Step 5: Solve for x
    x = 23,327,273,249.68/163,713.74
  6. Step 6: Final answer
    x = 142,488.19

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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.