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Finding the Fourth Proportional to 107,809.80, 162,006.30 and 94,979.40

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Solution

The fourth proportional to 107,809.80, 162,006.30 and 94,979.40 is: 142,726.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,809.80 : 162,006.30 = 94,979.40 : x
  2. Step 2: Convert to fraction form
    107,809.80/162,006.30 = 94,979.40/x
  3. Step 3: Cross multiply
    107,809.80x = 162,006.30 × 94,979.40
  4. Step 4: Simplify right side
    107,809.80x = 15,387,261,170.22
  5. Step 5: Solve for x
    x = 15,387,261,170.22/107,809.80
  6. Step 6: Final answer
    x = 142,726.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.