Home / 141,942.09-195,871.08-81,470.16

Finding the Fourth Proportional to 141,942.09, 195,871.08 and 81,470.16

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Solution

The fourth proportional to 141,942.09, 195,871.08 and 81,470.16 is: 112,423.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,942.09 : 195,871.08 = 81,470.16 : x
  2. Step 2: Convert to fraction form
    141,942.09/195,871.08 = 81,470.16/x
  3. Step 3: Cross multiply
    141,942.09x = 195,871.08 × 81,470.16
  4. Step 4: Simplify right side
    141,942.09x = 15,957,648,226.97
  5. Step 5: Solve for x
    x = 15,957,648,226.97/141,942.09
  6. Step 6: Final answer
    x = 112,423.65

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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.