Home / 158,645.96-218,929.38-90,662.15

Finding the Fourth Proportional to 158,645.96, 218,929.38 and 90,662.15

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Solution

The fourth proportional to 158,645.96, 218,929.38 and 90,662.15 is: 125,112.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,645.96 : 218,929.38 = 90,662.15 : x
  2. Step 2: Convert to fraction form
    158,645.96/218,929.38 = 90,662.15/x
  3. Step 3: Cross multiply
    158,645.96x = 218,929.38 × 90,662.15
  4. Step 4: Simplify right side
    158,645.96x = 19,848,609,006.28
  5. Step 5: Solve for x
    x = 19,848,609,006.28/158,645.96
  6. Step 6: Final answer
    x = 125,112.60

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1.5x scale

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.