Home / 158,853.06-219,218.74-87,234.58

Finding the Fourth Proportional to 158,853.06, 219,218.74 and 87,234.58

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Solution

The fourth proportional to 158,853.06, 219,218.74 and 87,234.58 is: 120,384.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,853.06 : 219,218.74 = 87,234.58 : x
  2. Step 2: Convert to fraction form
    158,853.06/219,218.74 = 87,234.58/x
  3. Step 3: Cross multiply
    158,853.06x = 219,218.74 × 87,234.58
  4. Step 4: Simplify right side
    158,853.06x = 19,123,454,712.03
  5. Step 5: Solve for x
    x = 19,123,454,712.03/158,853.06
  6. Step 6: Final answer
    x = 120,384.55

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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.