Home / 158,910.16-219,241.71-90,902.35

Finding the Fourth Proportional to 158,910.16, 219,241.71 and 90,902.35

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Solution

The fourth proportional to 158,910.16, 219,241.71 and 90,902.35 is: 125,414.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,910.16 : 219,241.71 = 90,902.35 : x
  2. Step 2: Convert to fraction form
    158,910.16/219,241.71 = 90,902.35/x
  3. Step 3: Cross multiply
    158,910.16x = 219,241.71 × 90,902.35
  4. Step 4: Simplify right side
    158,910.16x = 19,929,586,657.02
  5. Step 5: Solve for x
    x = 19,929,586,657.02/158,910.16
  6. Step 6: Final answer
    x = 125,414.18

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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.