Home / 113,921.10-156,069.32-109,661.70

Finding the Fourth Proportional to 113,921.10, 156,069.32 and 109,661.70

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Solution

The fourth proportional to 113,921.10, 156,069.32 and 109,661.70 is: 150,234.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,921.10 : 156,069.32 = 109,661.70 : x
  2. Step 2: Convert to fraction form
    113,921.10/156,069.32 = 109,661.70/x
  3. Step 3: Cross multiply
    113,921.10x = 156,069.32 × 109,661.70
  4. Step 4: Simplify right side
    113,921.10x = 17,114,826,400.74
  5. Step 5: Solve for x
    x = 17,114,826,400.74/113,921.10
  6. Step 6: Final answer
    x = 150,234.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.