Home / 135,530.16-203,426.60-65,458.80

Finding the Fourth Proportional to 135,530.16, 203,426.60 and 65,458.80

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Solution

The fourth proportional to 135,530.16, 203,426.60 and 65,458.80 is: 98,251.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,530.16 : 203,426.60 = 65,458.80 : x
  2. Step 2: Convert to fraction form
    135,530.16/203,426.60 = 65,458.80/x
  3. Step 3: Cross multiply
    135,530.16x = 203,426.60 × 65,458.80
  4. Step 4: Simplify right side
    135,530.16x = 13,316,061,124.08
  5. Step 5: Solve for x
    x = 13,316,061,124.08/135,530.16
  6. Step 6: Final answer
    x = 98,251.64

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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.