Home / 100,979.40-151,665.93-82,273.26

Finding the Fourth Proportional to 100,979.40, 151,665.93 and 82,273.26

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Solution

The fourth proportional to 100,979.40, 151,665.93 and 82,273.26 is: 123,570.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,979.40 : 151,665.93 = 82,273.26 : x
  2. Step 2: Convert to fraction form
    100,979.40/151,665.93 = 82,273.26/x
  3. Step 3: Cross multiply
    100,979.40x = 151,665.93 × 82,273.26
  4. Step 4: Simplify right side
    100,979.40x = 12,478,050,080.67
  5. Step 5: Solve for x
    x = 12,478,050,080.67/100,979.40
  6. Step 6: Final answer
    x = 123,570.25

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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.