Home / 141,648.12-195,474.52-77,985.91

Finding the Fourth Proportional to 141,648.12, 195,474.52 and 77,985.91

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Solution

The fourth proportional to 141,648.12, 195,474.52 and 77,985.91 is: 107,620.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,648.12 : 195,474.52 = 77,985.91 : x
  2. Step 2: Convert to fraction form
    141,648.12/195,474.52 = 77,985.91/x
  3. Step 3: Cross multiply
    141,648.12x = 195,474.52 × 77,985.91
  4. Step 4: Simplify right side
    141,648.12x = 15,244,258,776.94
  5. Step 5: Solve for x
    x = 15,244,258,776.94/141,648.12
  6. Step 6: Final answer
    x = 107,620.62

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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.