Home / 141,867.27-212,657.31-91,979.07

Finding the Fourth Proportional to 141,867.27, 212,657.31 and 91,979.07

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Solution

The fourth proportional to 141,867.27, 212,657.31 and 91,979.07 is: 137,875.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,867.27 : 212,657.31 = 91,979.07 : x
  2. Step 2: Convert to fraction form
    141,867.27/212,657.31 = 91,979.07/x
  3. Step 3: Cross multiply
    141,867.27x = 212,657.31 × 91,979.07
  4. Step 4: Simplify right side
    141,867.27x = 19,560,021,602.50
  5. Step 5: Solve for x
    x = 19,560,021,602.50/141,867.27
  6. Step 6: Final answer
    x = 137,875.51

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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.