Home / 138,911.32-191,698.13-75,248.96

Finding the Fourth Proportional to 138,911.32, 191,698.13 and 75,248.96

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Solution

The fourth proportional to 138,911.32, 191,698.13 and 75,248.96 is: 103,843.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,911.32 : 191,698.13 = 75,248.96 : x
  2. Step 2: Convert to fraction form
    138,911.32/191,698.13 = 75,248.96/x
  3. Step 3: Cross multiply
    138,911.32x = 191,698.13 × 75,248.96
  4. Step 4: Simplify right side
    138,911.32x = 14,425,084,540.20
  5. Step 5: Solve for x
    x = 14,425,084,540.20/138,911.32
  6. Step 6: Final answer
    x = 103,843.84

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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.