Home / 141,832.80-212,468.40-91,947.60

Finding the Fourth Proportional to 141,832.80, 212,468.40 and 91,947.60

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Solution

The fourth proportional to 141,832.80, 212,468.40 and 91,947.60 is: 137,739.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,832.80 : 212,468.40 = 91,947.60 : x
  2. Step 2: Convert to fraction form
    141,832.80/212,468.40 = 91,947.60/x
  3. Step 3: Cross multiply
    141,832.80x = 212,468.40 × 91,947.60
  4. Step 4: Simplify right side
    141,832.80x = 19,535,959,455.84
  5. Step 5: Solve for x
    x = 19,535,959,455.84/141,832.80
  6. Step 6: Final answer
    x = 137,739.36

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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.