Home / 77,467.20-116,200.80-74,186.70

Finding the Fourth Proportional to 77,467.20, 116,200.80 and 74,186.70

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Solution

The fourth proportional to 77,467.20, 116,200.80 and 74,186.70 is: 111,280.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,467.20 : 116,200.80 = 74,186.70 : x
  2. Step 2: Convert to fraction form
    77,467.20/116,200.80 = 74,186.70/x
  3. Step 3: Cross multiply
    77,467.20x = 116,200.80 × 74,186.70
  4. Step 4: Simplify right side
    77,467.20x = 8,620,553,889.36
  5. Step 5: Solve for x
    x = 8,620,553,889.36/77,467.20
  6. Step 6: Final answer
    x = 111,280.05

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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.