Home / 141,711.09-195,557.31-77,178.87

Finding the Fourth Proportional to 141,711.09, 195,557.31 and 77,178.87

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Solution

The fourth proportional to 141,711.09, 195,557.31 and 77,178.87 is: 106,504.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,711.09 : 195,557.31 = 77,178.87 : x
  2. Step 2: Convert to fraction form
    141,711.09/195,557.31 = 77,178.87/x
  3. Step 3: Cross multiply
    141,711.09x = 195,557.31 × 77,178.87
  4. Step 4: Simplify right side
    141,711.09x = 15,092,892,206.04
  5. Step 5: Solve for x
    x = 15,092,892,206.04/141,711.09
  6. Step 6: Final answer
    x = 106,504.67

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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.