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Finding the Fourth Proportional to 93,550.80, 140,671.80 and 78,344.40

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Solution

The fourth proportional to 93,550.80, 140,671.80 and 78,344.40 is: 117,806.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,550.80 : 140,671.80 = 78,344.40 : x
  2. Step 2: Convert to fraction form
    93,550.80/140,671.80 = 78,344.40/x
  3. Step 3: Cross multiply
    93,550.80x = 140,671.80 × 78,344.40
  4. Step 4: Simplify right side
    93,550.80x = 11,020,847,767.92
  5. Step 5: Solve for x
    x = 11,020,847,767.92/93,550.80
  6. Step 6: Final answer
    x = 117,806.02

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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.