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Finding the Fourth Proportional to 100,827.27, 151,261.65 and 84,302.76

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Solution

The fourth proportional to 100,827.27, 151,261.65 and 84,302.76 is: 126,471.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,827.27 : 151,261.65 = 84,302.76 : x
  2. Step 2: Convert to fraction form
    100,827.27/151,261.65 = 84,302.76/x
  3. Step 3: Cross multiply
    100,827.27x = 151,261.65 × 84,302.76
  4. Step 4: Simplify right side
    100,827.27x = 12,751,774,577.15
  5. Step 5: Solve for x
    x = 12,751,774,577.15/100,827.27
  6. Step 6: Final answer
    x = 126,471.49

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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.