Home / 113,218.62-156,229.29-65,464.74

Finding the Fourth Proportional to 113,218.62, 156,229.29 and 65,464.74

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Solution

The fourth proportional to 113,218.62, 156,229.29 and 65,464.74 is: 90,334.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,218.62 : 156,229.29 = 65,464.74 : x
  2. Step 2: Convert to fraction form
    113,218.62/156,229.29 = 65,464.74/x
  3. Step 3: Cross multiply
    113,218.62x = 156,229.29 × 65,464.74
  4. Step 4: Simplify right side
    113,218.62x = 10,227,509,850.23
  5. Step 5: Solve for x
    x = 10,227,509,850.23/113,218.62
  6. Step 6: Final answer
    x = 90,334.17

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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.