Home / 158,964.37-219,370.20-90,981.07

Finding the Fourth Proportional to 158,964.37, 219,370.20 and 90,981.07

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Solution

The fourth proportional to 158,964.37, 219,370.20 and 90,981.07 is: 125,553.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,964.37 : 219,370.20 = 90,981.07 : x
  2. Step 2: Convert to fraction form
    158,964.37/219,370.20 = 90,981.07/x
  3. Step 3: Cross multiply
    158,964.37x = 219,370.20 × 90,981.07
  4. Step 4: Simplify right side
    158,964.37x = 19,958,534,425.26
  5. Step 5: Solve for x
    x = 19,958,534,425.26/158,964.37
  6. Step 6: Final answer
    x = 125,553.51

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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.