Home / 138,832.70-191,588.88-75,170.48

Finding the Fourth Proportional to 138,832.70, 191,588.88 and 75,170.48

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Solution

The fourth proportional to 138,832.70, 191,588.88 and 75,170.48 is: 103,735.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,832.70 : 191,588.88 = 75,170.48 : x
  2. Step 2: Convert to fraction form
    138,832.70/191,588.88 = 75,170.48/x
  3. Step 3: Cross multiply
    138,832.70x = 191,588.88 × 75,170.48
  4. Step 4: Simplify right side
    138,832.70x = 14,401,828,072.26
  5. Step 5: Solve for x
    x = 14,401,828,072.26/138,832.70
  6. Step 6: Final answer
    x = 103,735.13

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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.