Home / 141,785.29-195,672.44-78,123.07

Finding the Fourth Proportional to 141,785.29, 195,672.44 and 78,123.07

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Solution

The fourth proportional to 141,785.29, 195,672.44 and 78,123.07 is: 107,814.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,785.29 : 195,672.44 = 78,123.07 : x
  2. Step 2: Convert to fraction form
    141,785.29/195,672.44 = 78,123.07/x
  3. Step 3: Cross multiply
    141,785.29x = 195,672.44 × 78,123.07
  4. Step 4: Simplify right side
    141,785.29x = 15,286,531,727.19
  5. Step 5: Solve for x
    x = 15,286,531,727.19/141,785.29
  6. Step 6: Final answer
    x = 107,814.65

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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.