Home / 141,678.30-195,515.75-77,146.54

Finding the Fourth Proportional to 141,678.30, 195,515.75 and 77,146.54

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Solution

The fourth proportional to 141,678.30, 195,515.75 and 77,146.54 is: 106,462.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,678.30 : 195,515.75 = 77,146.54 : x
  2. Step 2: Convert to fraction form
    141,678.30/195,515.75 = 77,146.54/x
  3. Step 3: Cross multiply
    141,678.30x = 195,515.75 × 77,146.54
  4. Step 4: Simplify right side
    141,678.30x = 15,083,363,390.05
  5. Step 5: Solve for x
    x = 15,083,363,390.05/141,678.30
  6. Step 6: Final answer
    x = 106,462.06

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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.