Home / 147,709.12-203,833.44-91,119.04

Finding the Fourth Proportional to 147,709.12, 203,833.44 and 91,119.04

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Solution

The fourth proportional to 147,709.12, 203,833.44 and 91,119.04 is: 125,741.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,709.12 : 203,833.44 = 91,119.04 : x
  2. Step 2: Convert to fraction form
    147,709.12/203,833.44 = 91,119.04/x
  3. Step 3: Cross multiply
    147,709.12x = 203,833.44 × 91,119.04
  4. Step 4: Simplify right side
    147,709.12x = 18,573,107,372.70
  5. Step 5: Solve for x
    x = 18,573,107,372.70/147,709.12
  6. Step 6: Final answer
    x = 125,741.10

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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.