Home / 109,411.08-150,998.66-66,997.80

Finding the Fourth Proportional to 109,411.08, 150,998.66 and 66,997.80

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Solution

The fourth proportional to 109,411.08, 150,998.66 and 66,997.80 is: 92,463.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,411.08 : 150,998.66 = 66,997.80 : x
  2. Step 2: Convert to fraction form
    109,411.08/150,998.66 = 66,997.80/x
  3. Step 3: Cross multiply
    109,411.08x = 150,998.66 × 66,997.80
  4. Step 4: Simplify right side
    109,411.08x = 10,116,578,022.95
  5. Step 5: Solve for x
    x = 10,116,578,022.95/109,411.08
  6. Step 6: Final answer
    x = 92,463.93

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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.