Home / 89,240.12-133,597.16-78,168.44

Finding the Fourth Proportional to 89,240.12, 133,597.16 and 78,168.44

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Solution

The fourth proportional to 89,240.12, 133,597.16 and 78,168.44 is: 117,022.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,240.12 : 133,597.16 = 78,168.44 : x
  2. Step 2: Convert to fraction form
    89,240.12/133,597.16 = 78,168.44/x
  3. Step 3: Cross multiply
    89,240.12x = 133,597.16 × 78,168.44
  4. Step 4: Simplify right side
    89,240.12x = 10,443,081,585.63
  5. Step 5: Solve for x
    x = 10,443,081,585.63/89,240.12
  6. Step 6: Final answer
    x = 117,022.27

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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.