Home / 135,486.32-203,170.63-72,292.35

Finding the Fourth Proportional to 135,486.32, 203,170.63 and 72,292.35

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Solution

The fourth proportional to 135,486.32, 203,170.63 and 72,292.35 is: 108,407.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,486.32 : 203,170.63 = 72,292.35 : x
  2. Step 2: Convert to fraction form
    135,486.32/203,170.63 = 72,292.35/x
  3. Step 3: Cross multiply
    135,486.32x = 203,170.63 × 72,292.35
  4. Step 4: Simplify right side
    135,486.32x = 14,687,681,867.55
  5. Step 5: Solve for x
    x = 14,687,681,867.55/135,486.32
  6. Step 6: Final answer
    x = 108,407.12

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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.