Home / 113,729.75-156,896.34-65,955.41

Finding the Fourth Proportional to 113,729.75, 156,896.34 and 65,955.41

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Solution

The fourth proportional to 113,729.75, 156,896.34 and 65,955.41 is: 90,989.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,729.75 : 156,896.34 = 65,955.41 : x
  2. Step 2: Convert to fraction form
    113,729.75/156,896.34 = 65,955.41/x
  3. Step 3: Cross multiply
    113,729.75x = 156,896.34 × 65,955.41
  4. Step 4: Simplify right side
    113,729.75x = 10,348,162,432.20
  5. Step 5: Solve for x
    x = 10,348,162,432.20/113,729.75
  6. Step 6: Final answer
    x = 90,989.05

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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.