Home / 153,867.54-212,169.78-100,052.76

Finding the Fourth Proportional to 153,867.54, 212,169.78 and 100,052.76

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Solution

The fourth proportional to 153,867.54, 212,169.78 and 100,052.76 is: 137,963.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,867.54 : 212,169.78 = 100,052.76 : x
  2. Step 2: Convert to fraction form
    153,867.54/212,169.78 = 100,052.76/x
  3. Step 3: Cross multiply
    153,867.54x = 212,169.78 × 100,052.76
  4. Step 4: Simplify right side
    153,867.54x = 21,228,172,077.59
  5. Step 5: Solve for x
    x = 21,228,172,077.59/153,867.54
  6. Step 6: Final answer
    x = 137,963.94

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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.