Home / 141,949.12-212,969.76-121,046.56

Finding the Fourth Proportional to 141,949.12, 212,969.76 and 121,046.56

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Solution

The fourth proportional to 141,949.12, 212,969.76 and 121,046.56 is: 181,609.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,949.12 : 212,969.76 = 121,046.56 : x
  2. Step 2: Convert to fraction form
    141,949.12/212,969.76 = 121,046.56/x
  3. Step 3: Cross multiply
    141,949.12x = 212,969.76 × 121,046.56
  4. Step 4: Simplify right side
    141,949.12x = 25,779,256,832.03
  5. Step 5: Solve for x
    x = 25,779,256,832.03/141,949.12
  6. Step 6: Final answer
    x = 181,609.13

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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.