Home / 141,679.81-195,512.36-81,208.35

Finding the Fourth Proportional to 141,679.81, 195,512.36 and 81,208.35

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Solution

The fourth proportional to 141,679.81, 195,512.36 and 81,208.35 is: 112,064.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,679.81 : 195,512.36 = 81,208.35 : x
  2. Step 2: Convert to fraction form
    141,679.81/195,512.36 = 81,208.35/x
  3. Step 3: Cross multiply
    141,679.81x = 195,512.36 × 81,208.35
  4. Step 4: Simplify right side
    141,679.81x = 15,877,236,160.21
  5. Step 5: Solve for x
    x = 15,877,236,160.21/141,679.81
  6. Step 6: Final answer
    x = 112,064.21

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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.