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Finding the Fourth Proportional to 135,906.90, 203,860.35 and 88,667.70

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Solution

The fourth proportional to 135,906.90, 203,860.35 and 88,667.70 is: 133,001.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,906.90 : 203,860.35 = 88,667.70 : x
  2. Step 2: Convert to fraction form
    135,906.90/203,860.35 = 88,667.70/x
  3. Step 3: Cross multiply
    135,906.90x = 203,860.35 × 88,667.70
  4. Step 4: Simplify right side
    135,906.90x = 18,075,828,355.70
  5. Step 5: Solve for x
    x = 18,075,828,355.70/135,906.90
  6. Step 6: Final answer
    x = 133,001.55

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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.