Home / 113,072.06-156,021.26-65,331.74

Finding the Fourth Proportional to 113,072.06, 156,021.26 and 65,331.74

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Solution

The fourth proportional to 113,072.06, 156,021.26 and 65,331.74 is: 90,147.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,072.06 : 156,021.26 = 65,331.74 : x
  2. Step 2: Convert to fraction form
    113,072.06/156,021.26 = 65,331.74/x
  3. Step 3: Cross multiply
    113,072.06x = 156,021.26 × 65,331.74
  4. Step 4: Simplify right side
    113,072.06x = 10,193,140,392.79
  5. Step 5: Solve for x
    x = 10,193,140,392.79/113,072.06
  6. Step 6: Final answer
    x = 90,147.30

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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.