Home / 113,723.70-156,887.97-65,949.36

Finding the Fourth Proportional to 113,723.70, 156,887.97 and 65,949.36

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Solution

The fourth proportional to 113,723.70, 156,887.97 and 65,949.36 is: 90,980.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,723.70 : 156,887.97 = 65,949.36 : x
  2. Step 2: Convert to fraction form
    113,723.70/156,887.97 = 65,949.36/x
  3. Step 3: Cross multiply
    113,723.70x = 156,887.97 × 65,949.36
  4. Step 4: Simplify right side
    113,723.70x = 10,346,661,213.20
  5. Step 5: Solve for x
    x = 10,346,661,213.20/113,723.70
  6. Step 6: Final answer
    x = 90,980.69

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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.