Home / 210,193.75-290,067.38-134,742.25

Finding the Fourth Proportional to 210,193.75, 290,067.38 and 134,742.25

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Solution

The fourth proportional to 210,193.75, 290,067.38 and 134,742.25 is: 185,944.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,193.75 : 290,067.38 = 134,742.25 : x
  2. Step 2: Convert to fraction form
    210,193.75/290,067.38 = 134,742.25/x
  3. Step 3: Cross multiply
    210,193.75x = 290,067.38 × 134,742.25
  4. Step 4: Simplify right side
    210,193.75x = 39,084,331,432.81
  5. Step 5: Solve for x
    x = 39,084,331,432.81/210,193.75
  6. Step 6: Final answer
    x = 185,944.31

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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.