Home / 138,843.72-191,604.06-75,181.32

Finding the Fourth Proportional to 138,843.72, 191,604.06 and 75,181.32

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Solution

The fourth proportional to 138,843.72, 191,604.06 and 75,181.32 is: 103,750.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,843.72 : 191,604.06 = 75,181.32 : x
  2. Step 2: Convert to fraction form
    138,843.72/191,604.06 = 75,181.32/x
  3. Step 3: Cross multiply
    138,843.72x = 191,604.06 × 75,181.32
  4. Step 4: Simplify right side
    138,843.72x = 14,405,046,148.16
  5. Step 5: Solve for x
    x = 14,405,046,148.16/138,843.72
  6. Step 6: Final answer
    x = 103,750.07

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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.