Home / 135,748.32-187,342.95-75,330.39

Finding the Fourth Proportional to 135,748.32, 187,342.95 and 75,330.39

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Solution

The fourth proportional to 135,748.32, 187,342.95 and 75,330.39 is: 103,961.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,748.32 : 187,342.95 = 75,330.39 : x
  2. Step 2: Convert to fraction form
    135,748.32/187,342.95 = 75,330.39/x
  3. Step 3: Cross multiply
    135,748.32x = 187,342.95 × 75,330.39
  4. Step 4: Simplify right side
    135,748.32x = 14,112,617,487.25
  5. Step 5: Solve for x
    x = 14,112,617,487.25/135,748.32
  6. Step 6: Final answer
    x = 103,961.64

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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.