Home / 158,749.62-219,080.07-87,131.58

Finding the Fourth Proportional to 158,749.62, 219,080.07 and 87,131.58

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Solution

The fourth proportional to 158,749.62, 219,080.07 and 87,131.58 is: 120,244.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,749.62 : 219,080.07 = 87,131.58 : x
  2. Step 2: Convert to fraction form
    158,749.62/219,080.07 = 87,131.58/x
  3. Step 3: Cross multiply
    158,749.62x = 219,080.07 × 87,131.58
  4. Step 4: Simplify right side
    158,749.62x = 19,088,792,645.61
  5. Step 5: Solve for x
    x = 19,088,792,645.61/158,749.62
  6. Step 6: Final answer
    x = 120,244.65

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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.