Home / 113,040.80-156,003.68-65,296.16

Finding the Fourth Proportional to 113,040.80, 156,003.68 and 65,296.16

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Solution

The fourth proportional to 113,040.80, 156,003.68 and 65,296.16 is: 90,112.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,040.80 : 156,003.68 = 65,296.16 : x
  2. Step 2: Convert to fraction form
    113,040.80/156,003.68 = 65,296.16/x
  3. Step 3: Cross multiply
    113,040.80x = 156,003.68 × 65,296.16
  4. Step 4: Simplify right side
    113,040.80x = 10,186,441,249.87
  5. Step 5: Solve for x
    x = 10,186,441,249.87/113,040.80
  6. Step 6: Final answer
    x = 90,112.96

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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.