Home / 100,187.33-138,258.58-54,246.83

Finding the Fourth Proportional to 100,187.33, 138,258.58 and 54,246.83

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Solution

The fourth proportional to 100,187.33, 138,258.58 and 54,246.83 is: 74,860.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,187.33 : 138,258.58 = 54,246.83 : x
  2. Step 2: Convert to fraction form
    100,187.33/138,258.58 = 54,246.83/x
  3. Step 3: Cross multiply
    100,187.33x = 138,258.58 × 54,246.83
  4. Step 4: Simplify right side
    100,187.33x = 7,500,089,685.30
  5. Step 5: Solve for x
    x = 7,500,089,685.30/100,187.33
  6. Step 6: Final answer
    x = 74,860.66

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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.