Home / 141,969.21-195,518.85-138,869.15

Finding the Fourth Proportional to 141,969.21, 195,518.85 and 138,869.15

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Solution

The fourth proportional to 141,969.21, 195,518.85 and 138,869.15 is: 191,249.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,969.21 : 195,518.85 = 138,869.15 : x
  2. Step 2: Convert to fraction form
    141,969.21/195,518.85 = 138,869.15/x
  3. Step 3: Cross multiply
    141,969.21x = 195,518.85 × 138,869.15
  4. Step 4: Simplify right side
    141,969.21x = 27,151,535,530.88
  5. Step 5: Solve for x
    x = 27,151,535,530.88/141,969.21
  6. Step 6: Final answer
    x = 191,249.47

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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.