Home / 203,637.12-281,014.92-112,991.13

Finding the Fourth Proportional to 203,637.12, 281,014.92 and 112,991.13

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Solution

The fourth proportional to 203,637.12, 281,014.92 and 112,991.13 is: 155,925.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,637.12 : 281,014.92 = 112,991.13 : x
  2. Step 2: Convert to fraction form
    203,637.12/281,014.92 = 112,991.13/x
  3. Step 3: Cross multiply
    203,637.12x = 281,014.92 × 112,991.13
  4. Step 4: Simplify right side
    203,637.12x = 31,752,193,357.66
  5. Step 5: Solve for x
    x = 31,752,193,357.66/203,637.12
  6. Step 6: Final answer
    x = 155,925.37

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1.5x scale

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.