Home / 135,809.42-187,408.13-75,377.13

Finding the Fourth Proportional to 135,809.42, 187,408.13 and 75,377.13

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Solution

The fourth proportional to 135,809.42, 187,408.13 and 75,377.13 is: 104,015.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,809.42 : 187,408.13 = 75,377.13 : x
  2. Step 2: Convert to fraction form
    135,809.42/187,408.13 = 75,377.13/x
  3. Step 3: Cross multiply
    135,809.42x = 187,408.13 × 75,377.13
  4. Step 4: Simplify right side
    135,809.42x = 14,126,286,601.18
  5. Step 5: Solve for x
    x = 14,126,286,601.18/135,809.42
  6. Step 6: Final answer
    x = 104,015.52

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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.