Home / 155,443.32-214,516.62-88,379.64

Finding the Fourth Proportional to 155,443.32, 214,516.62 and 88,379.64

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Solution

The fourth proportional to 155,443.32, 214,516.62 and 88,379.64 is: 121,966.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,443.32 : 214,516.62 = 88,379.64 : x
  2. Step 2: Convert to fraction form
    155,443.32/214,516.62 = 88,379.64/x
  3. Step 3: Cross multiply
    155,443.32x = 214,516.62 × 88,379.64
  4. Step 4: Simplify right side
    155,443.32x = 18,958,901,649.62
  5. Step 5: Solve for x
    x = 18,958,901,649.62/155,443.32
  6. Step 6: Final answer
    x = 121,966.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.