Home / 135,725.12-203,587.68-42,212.24

Finding the Fourth Proportional to 135,725.12, 203,587.68 and 42,212.24

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Solution

The fourth proportional to 135,725.12, 203,587.68 and 42,212.24 is: 63,318.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,725.12 : 203,587.68 = 42,212.24 : x
  2. Step 2: Convert to fraction form
    135,725.12/203,587.68 = 42,212.24/x
  3. Step 3: Cross multiply
    135,725.12x = 203,587.68 × 42,212.24
  4. Step 4: Simplify right side
    135,725.12x = 8,593,892,009.20
  5. Step 5: Solve for x
    x = 8,593,892,009.20/135,725.12
  6. Step 6: Final answer
    x = 63,318.36

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1.5x scale

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.