Home / 135,931.96-187,586.04-75,508.21

Finding the Fourth Proportional to 135,931.96, 187,586.04 and 75,508.21

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Solution

The fourth proportional to 135,931.96, 187,586.04 and 75,508.21 is: 104,201.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,931.96 : 187,586.04 = 75,508.21 : x
  2. Step 2: Convert to fraction form
    135,931.96/187,586.04 = 75,508.21/x
  3. Step 3: Cross multiply
    135,931.96x = 187,586.04 × 75,508.21
  4. Step 4: Simplify right side
    135,931.96x = 14,164,286,101.39
  5. Step 5: Solve for x
    x = 14,164,286,101.39/135,931.96
  6. Step 6: Final answer
    x = 104,201.29

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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.