Home / 151,486.09-209,042.67-83,489.52

Finding the Fourth Proportional to 151,486.09, 209,042.67 and 83,489.52

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Solution

The fourth proportional to 151,486.09, 209,042.67 and 83,489.52 is: 115,211.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,486.09 : 209,042.67 = 83,489.52 : x
  2. Step 2: Convert to fraction form
    151,486.09/209,042.67 = 83,489.52/x
  3. Step 3: Cross multiply
    151,486.09x = 209,042.67 × 83,489.52
  4. Step 4: Simplify right side
    151,486.09x = 17,452,873,274.81
  5. Step 5: Solve for x
    x = 17,452,873,274.81/151,486.09
  6. Step 6: Final answer
    x = 115,211.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.