Home / 117,403.74-175,884.17-90,979.31

Finding the Fourth Proportional to 117,403.74, 175,884.17 and 90,979.31

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Solution

The fourth proportional to 117,403.74, 175,884.17 and 90,979.31 is: 136,297.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,403.74 : 175,884.17 = 90,979.31 : x
  2. Step 2: Convert to fraction form
    117,403.74/175,884.17 = 90,979.31/x
  3. Step 3: Cross multiply
    117,403.74x = 175,884.17 × 90,979.31
  4. Step 4: Simplify right side
    117,403.74x = 16,001,819,092.21
  5. Step 5: Solve for x
    x = 16,001,819,092.21/117,403.74
  6. Step 6: Final answer
    x = 136,297.35

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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.