Home / 88,731.20-133,096.80-36,178.40

Finding the Fourth Proportional to 88,731.20, 133,096.80 and 36,178.40

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Solution

The fourth proportional to 88,731.20, 133,096.80 and 36,178.40 is: 54,267.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,731.20 : 133,096.80 = 36,178.40 : x
  2. Step 2: Convert to fraction form
    88,731.20/133,096.80 = 36,178.40/x
  3. Step 3: Cross multiply
    88,731.20x = 133,096.80 × 36,178.40
  4. Step 4: Simplify right side
    88,731.20x = 4,815,229,269.12
  5. Step 5: Solve for x
    x = 4,815,229,269.12/88,731.20
  6. Step 6: Final answer
    x = 54,267.60

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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.