Home / 118,789.61-163,883.99-67,805.17

Finding the Fourth Proportional to 118,789.61, 163,883.99 and 67,805.17

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Solution

The fourth proportional to 118,789.61, 163,883.99 and 67,805.17 is: 93,545.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,789.61 : 163,883.99 = 67,805.17 : x
  2. Step 2: Convert to fraction form
    118,789.61/163,883.99 = 67,805.17/x
  3. Step 3: Cross multiply
    118,789.61x = 163,883.99 × 67,805.17
  4. Step 4: Simplify right side
    118,789.61x = 11,112,181,562.03
  5. Step 5: Solve for x
    x = 11,112,181,562.03/118,789.61
  6. Step 6: Final answer
    x = 93,545.07

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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.