Home / 135,829.34-187,443.66-75,408.74

Finding the Fourth Proportional to 135,829.34, 187,443.66 and 75,408.74

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Solution

The fourth proportional to 135,829.34, 187,443.66 and 75,408.74 is: 104,063.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,829.34 : 187,443.66 = 75,408.74 : x
  2. Step 2: Convert to fraction form
    135,829.34/187,443.66 = 75,408.74/x
  3. Step 3: Cross multiply
    135,829.34x = 187,443.66 × 75,408.74
  4. Step 4: Simplify right side
    135,829.34x = 14,134,890,221.59
  5. Step 5: Solve for x
    x = 14,134,890,221.59/135,829.34
  6. Step 6: Final answer
    x = 104,063.60

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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.