Home / 137,226.20-205,839.30-128,010.20

Finding the Fourth Proportional to 137,226.20, 205,839.30 and 128,010.20

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Solution

The fourth proportional to 137,226.20, 205,839.30 and 128,010.20 is: 192,015.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,226.20 : 205,839.30 = 128,010.20 : x
  2. Step 2: Convert to fraction form
    137,226.20/205,839.30 = 128,010.20/x
  3. Step 3: Cross multiply
    137,226.20x = 205,839.30 × 128,010.20
  4. Step 4: Simplify right side
    137,226.20x = 26,349,529,960.86
  5. Step 5: Solve for x
    x = 26,349,529,960.86/137,226.20
  6. Step 6: Final answer
    x = 192,015.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.