Home / 113,529.16-155,535.77-109,272.70

Finding the Fourth Proportional to 113,529.16, 155,535.77 and 109,272.70

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Solution

The fourth proportional to 113,529.16, 155,535.77 and 109,272.70 is: 149,704.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,529.16 : 155,535.77 = 109,272.70 : x
  2. Step 2: Convert to fraction form
    113,529.16/155,535.77 = 109,272.70/x
  3. Step 3: Cross multiply
    113,529.16x = 155,535.77 × 109,272.70
  4. Step 4: Simplify right side
    113,529.16x = 16,995,813,534.48
  5. Step 5: Solve for x
    x = 16,995,813,534.48/113,529.16
  6. Step 6: Final answer
    x = 149,704.39

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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.