Home / 113,511.24-156,629.16-65,755.80

Finding the Fourth Proportional to 113,511.24, 156,629.16 and 65,755.80

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Solution

The fourth proportional to 113,511.24, 156,629.16 and 65,755.80 is: 90,733.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,511.24 : 156,629.16 = 65,755.80 : x
  2. Step 2: Convert to fraction form
    113,511.24/156,629.16 = 65,755.80/x
  3. Step 3: Cross multiply
    113,511.24x = 156,629.16 × 65,755.80
  4. Step 4: Simplify right side
    113,511.24x = 10,299,275,719.13
  5. Step 5: Solve for x
    x = 10,299,275,719.13/113,511.24
  6. Step 6: Final answer
    x = 90,733.53

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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.