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Finding the Fourth Proportional to 162,737.80, 243,912.30 and 83,811.40

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Solution

The fourth proportional to 162,737.80, 243,912.30 and 83,811.40 is: 125,616.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,737.80 : 243,912.30 = 83,811.40 : x
  2. Step 2: Convert to fraction form
    162,737.80/243,912.30 = 83,811.40/x
  3. Step 3: Cross multiply
    162,737.80x = 243,912.30 × 83,811.40
  4. Step 4: Simplify right side
    162,737.80x = 20,442,631,340.22
  5. Step 5: Solve for x
    x = 20,442,631,340.22/162,737.80
  6. Step 6: Final answer
    x = 125,616.98

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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.