Home / 113,186.75-156,328.94-75,395.39

Finding the Fourth Proportional to 113,186.75, 156,328.94 and 75,395.39

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Solution

The fourth proportional to 113,186.75, 156,328.94 and 75,395.39 is: 104,133.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,186.75 : 156,328.94 = 75,395.39 : x
  2. Step 2: Convert to fraction form
    113,186.75/156,328.94 = 75,395.39/x
  3. Step 3: Cross multiply
    113,186.75x = 156,328.94 × 75,395.39
  4. Step 4: Simplify right side
    113,186.75x = 11,786,481,022.61
  5. Step 5: Solve for x
    x = 11,786,481,022.61/113,186.75
  6. Step 6: Final answer
    x = 104,133.05

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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.