Home / 141,622.29-195,438.76-77,091.78

Finding the Fourth Proportional to 141,622.29, 195,438.76 and 77,091.78

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Solution

The fourth proportional to 141,622.29, 195,438.76 and 77,091.78 is: 106,386.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,622.29 : 195,438.76 = 77,091.78 : x
  2. Step 2: Convert to fraction form
    141,622.29/195,438.76 = 77,091.78/x
  3. Step 3: Cross multiply
    141,622.29x = 195,438.76 × 77,091.78
  4. Step 4: Simplify right side
    141,622.29x = 15,066,722,429.56
  5. Step 5: Solve for x
    x = 15,066,722,429.56/141,622.29
  6. Step 6: Final answer
    x = 106,386.66

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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.