Home / 153,934.20-212,456.82-91,848.66

Finding the Fourth Proportional to 153,934.20, 212,456.82 and 91,848.66

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Solution

The fourth proportional to 153,934.20, 212,456.82 and 91,848.66 is: 126,767.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,934.20 : 212,456.82 = 91,848.66 : x
  2. Step 2: Convert to fraction form
    153,934.20/212,456.82 = 91,848.66/x
  3. Step 3: Cross multiply
    153,934.20x = 212,456.82 × 91,848.66
  4. Step 4: Simplify right side
    153,934.20x = 19,513,874,224.86
  5. Step 5: Solve for x
    x = 19,513,874,224.86/153,934.20
  6. Step 6: Final answer
    x = 126,767.63

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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.