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Finding the Fourth Proportional to 162,382.48, 243,794.60 and 91,355.10

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Solution

The fourth proportional to 162,382.48, 243,794.60 and 91,355.10 is: 137,156.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,382.48 : 243,794.60 = 91,355.10 : x
  2. Step 2: Convert to fraction form
    162,382.48/243,794.60 = 91,355.10/x
  3. Step 3: Cross multiply
    162,382.48x = 243,794.60 × 91,355.10
  4. Step 4: Simplify right side
    162,382.48x = 22,271,880,290.85
  5. Step 5: Solve for x
    x = 22,271,880,290.85/162,382.48
  6. Step 6: Final answer
    x = 137,156.92

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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.