Home / 153,929.87-212,450.85-91,844.35

Finding the Fourth Proportional to 153,929.87, 212,450.85 and 91,844.35

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Solution

The fourth proportional to 153,929.87, 212,450.85 and 91,844.35 is: 126,761.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,929.87 : 212,450.85 = 91,844.35 : x
  2. Step 2: Convert to fraction form
    153,929.87/212,450.85 = 91,844.35/x
  3. Step 3: Cross multiply
    153,929.87x = 212,450.85 × 91,844.35
  4. Step 4: Simplify right side
    153,929.87x = 19,512,409,694.07
  5. Step 5: Solve for x
    x = 19,512,409,694.07/153,929.87
  6. Step 6: Final answer
    x = 126,761.69

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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.