Home / 141,318.96-195,017.76-77,656.68

Finding the Fourth Proportional to 141,318.96, 195,017.76 and 77,656.68

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Solution

The fourth proportional to 141,318.96, 195,017.76 and 77,656.68 is: 107,164.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,318.96 : 195,017.76 = 77,656.68 : x
  2. Step 2: Convert to fraction form
    141,318.96/195,017.76 = 77,656.68/x
  3. Step 3: Cross multiply
    141,318.96x = 195,017.76 × 77,656.68
  4. Step 4: Simplify right side
    141,318.96x = 15,144,431,782.64
  5. Step 5: Solve for x
    x = 15,144,431,782.64/141,318.96
  6. Step 6: Final answer
    x = 107,164.90

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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.