Home / 141,677.79-195,516.63-78,015.84

Finding the Fourth Proportional to 141,677.79, 195,516.63 and 78,015.84

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Solution

The fourth proportional to 141,677.79, 195,516.63 and 78,015.84 is: 107,662.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,677.79 : 195,516.63 = 78,015.84 : x
  2. Step 2: Convert to fraction form
    141,677.79/195,516.63 = 78,015.84/x
  3. Step 3: Cross multiply
    141,677.79x = 195,516.63 × 78,015.84
  4. Step 4: Simplify right side
    141,677.79x = 15,253,394,123.42
  5. Step 5: Solve for x
    x = 15,253,394,123.42/141,677.79
  6. Step 6: Final answer
    x = 107,662.56

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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.