Home / 141,407.40-195,142.72-77,749.24

Finding the Fourth Proportional to 141,407.40, 195,142.72 and 77,749.24

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Solution

The fourth proportional to 141,407.40, 195,142.72 and 77,749.24 is: 107,294.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,407.40 : 195,142.72 = 77,749.24 : x
  2. Step 2: Convert to fraction form
    141,407.40/195,142.72 = 77,749.24/x
  3. Step 3: Cross multiply
    141,407.40x = 195,142.72 × 77,749.24
  4. Step 4: Simplify right side
    141,407.40x = 15,172,198,171.53
  5. Step 5: Solve for x
    x = 15,172,198,171.53/141,407.40
  6. Step 6: Final answer
    x = 107,294.23

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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.