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Finding the Fourth Proportional to 132,645.27, 183,054.02 and 72,218.46

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Solution

The fourth proportional to 132,645.27, 183,054.02 and 72,218.46 is: 99,663.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,645.27 : 183,054.02 = 72,218.46 : x
  2. Step 2: Convert to fraction form
    132,645.27/183,054.02 = 72,218.46/x
  3. Step 3: Cross multiply
    132,645.27x = 183,054.02 × 72,218.46
  4. Step 4: Simplify right side
    132,645.27x = 13,219,879,060.12
  5. Step 5: Solve for x
    x = 13,219,879,060.12/132,645.27
  6. Step 6: Final answer
    x = 99,663.40

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.