Home / 102,381.77-141,198.49-66,558.71

Finding the Fourth Proportional to 102,381.77, 141,198.49 and 66,558.71

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Solution

The fourth proportional to 102,381.77, 141,198.49 and 66,558.71 is: 91,793.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,381.77 : 141,198.49 = 66,558.71 : x
  2. Step 2: Convert to fraction form
    102,381.77/141,198.49 = 66,558.71/x
  3. Step 3: Cross multiply
    102,381.77x = 141,198.49 × 66,558.71
  4. Step 4: Simplify right side
    102,381.77x = 9,397,989,784.54
  5. Step 5: Solve for x
    x = 9,397,989,784.54/102,381.77
  6. Step 6: Final answer
    x = 91,793.58

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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.