Home / 118,848.77-164,015.79-67,869.80

Finding the Fourth Proportional to 118,848.77, 164,015.79 and 67,869.80

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Solution

The fourth proportional to 118,848.77, 164,015.79 and 67,869.80 is: 93,662.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,848.77 : 164,015.79 = 67,869.80 : x
  2. Step 2: Convert to fraction form
    118,848.77/164,015.79 = 67,869.80/x
  3. Step 3: Cross multiply
    118,848.77x = 164,015.79 × 67,869.80
  4. Step 4: Simplify right side
    118,848.77x = 11,131,718,864.14
  5. Step 5: Solve for x
    x = 11,131,718,864.14/118,848.77
  6. Step 6: Final answer
    x = 93,662.89

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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.