Home / 137,803.54-190,189.68-84,119.80

Finding the Fourth Proportional to 137,803.54, 190,189.68 and 84,119.80

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Solution

The fourth proportional to 137,803.54, 190,189.68 and 84,119.80 is: 116,098.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,803.54 : 190,189.68 = 84,119.80 : x
  2. Step 2: Convert to fraction form
    137,803.54/190,189.68 = 84,119.80/x
  3. Step 3: Cross multiply
    137,803.54x = 190,189.68 × 84,119.80
  4. Step 4: Simplify right side
    137,803.54x = 15,998,717,843.66
  5. Step 5: Solve for x
    x = 15,998,717,843.66/137,803.54
  6. Step 6: Final answer
    x = 116,098.02

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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.