Home / 141,016.80-211,457.14-81,867.36

Finding the Fourth Proportional to 141,016.80, 211,457.14 and 81,867.36

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Solution

The fourth proportional to 141,016.80, 211,457.14 and 81,867.36 is: 122,761.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,016.80 : 211,457.14 = 81,867.36 : x
  2. Step 2: Convert to fraction form
    141,016.80/211,457.14 = 81,867.36/x
  3. Step 3: Cross multiply
    141,016.80x = 211,457.14 × 81,867.36
  4. Step 4: Simplify right side
    141,016.80x = 17,311,437,804.95
  5. Step 5: Solve for x
    x = 17,311,437,804.95/141,016.80
  6. Step 6: Final answer
    x = 122,761.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.