Home / 138,832.96-191,588.58-75,170.62

Finding the Fourth Proportional to 138,832.96, 191,588.58 and 75,170.62

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Solution

The fourth proportional to 138,832.96, 191,588.58 and 75,170.62 is: 103,734.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,832.96 : 191,588.58 = 75,170.62 : x
  2. Step 2: Convert to fraction form
    138,832.96/191,588.58 = 75,170.62/x
  3. Step 3: Cross multiply
    138,832.96x = 191,588.58 × 75,170.62
  4. Step 4: Simplify right side
    138,832.96x = 14,401,832,343.52
  5. Step 5: Solve for x
    x = 14,401,832,343.52/138,832.96
  6. Step 6: Final answer
    x = 103,734.97

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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.