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Finding the Fourth Proportional to 135,967.34, 187,634.76 and 75,543.56

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Solution

The fourth proportional to 135,967.34, 187,634.76 and 75,543.56 is: 104,250.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,967.34 : 187,634.76 = 75,543.56 : x
  2. Step 2: Convert to fraction form
    135,967.34/187,634.76 = 75,543.56/x
  3. Step 3: Cross multiply
    135,967.34x = 187,634.76 × 75,543.56
  4. Step 4: Simplify right side
    135,967.34x = 14,174,597,750.15
  5. Step 5: Solve for x
    x = 14,174,597,750.15/135,967.34
  6. Step 6: Final answer
    x = 104,250.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.