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Finding the Fourth Proportional to 88,143.96, 132,232.35 and 28,981.98

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Solution

The fourth proportional to 88,143.96, 132,232.35 and 28,981.98 is: 43,478.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,143.96 : 132,232.35 = 28,981.98 : x
  2. Step 2: Convert to fraction form
    88,143.96/132,232.35 = 28,981.98/x
  3. Step 3: Cross multiply
    88,143.96x = 132,232.35 × 28,981.98
  4. Step 4: Simplify right side
    88,143.96x = 3,832,355,323.05
  5. Step 5: Solve for x
    x = 3,832,355,323.05/88,143.96
  6. Step 6: Final answer
    x = 43,478.37

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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.