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Finding the Fourth Proportional to 84,148.39, 126,102.30 and 61,786.32

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Solution

The fourth proportional to 84,148.39, 126,102.30 and 61,786.32 is: 92,591.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,148.39 : 126,102.30 = 61,786.32 : x
  2. Step 2: Convert to fraction form
    84,148.39/126,102.30 = 61,786.32/x
  3. Step 3: Cross multiply
    84,148.39x = 126,102.30 × 61,786.32
  4. Step 4: Simplify right side
    84,148.39x = 7,791,397,060.54
  5. Step 5: Solve for x
    x = 7,791,397,060.54/84,148.39
  6. Step 6: Final answer
    x = 92,591.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.