Home / 135,618.60-203,427.90-121,103.40

Finding the Fourth Proportional to 135,618.60, 203,427.90 and 121,103.40

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Solution

The fourth proportional to 135,618.60, 203,427.90 and 121,103.40 is: 181,655.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,618.60 : 203,427.90 = 121,103.40 : x
  2. Step 2: Convert to fraction form
    135,618.60/203,427.90 = 121,103.40/x
  3. Step 3: Cross multiply
    135,618.60x = 203,427.90 × 121,103.40
  4. Step 4: Simplify right side
    135,618.60x = 24,635,810,344.86
  5. Step 5: Solve for x
    x = 24,635,810,344.86/135,618.60
  6. Step 6: Final answer
    x = 181,655.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.