Home / 68,752.17-103,128.34-18,832.70

Finding the Fourth Proportional to 68,752.17, 103,128.34 and 18,832.70

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Solution

The fourth proportional to 68,752.17, 103,128.34 and 18,832.70 is: 28,249.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,752.17 : 103,128.34 = 18,832.70 : x
  2. Step 2: Convert to fraction form
    68,752.17/103,128.34 = 18,832.70/x
  3. Step 3: Cross multiply
    68,752.17x = 103,128.34 × 18,832.70
  4. Step 4: Simplify right side
    68,752.17x = 1,942,185,334.77
  5. Step 5: Solve for x
    x = 1,942,185,334.77/68,752.17
  6. Step 6: Final answer
    x = 28,249.08

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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.