Home / 153,828.82-212,379.87-117,949.87

Finding the Fourth Proportional to 153,828.82, 212,379.87 and 117,949.87

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Solution

The fourth proportional to 153,828.82, 212,379.87 and 117,949.87 is: 162,844.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,828.82 : 212,379.87 = 117,949.87 : x
  2. Step 2: Convert to fraction form
    153,828.82/212,379.87 = 117,949.87/x
  3. Step 3: Cross multiply
    153,828.82x = 212,379.87 × 117,949.87
  4. Step 4: Simplify right side
    153,828.82x = 25,050,178,057.12
  5. Step 5: Solve for x
    x = 25,050,178,057.12/153,828.82
  6. Step 6: Final answer
    x = 162,844.51

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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.