Home / 138,923.66-191,714.63-75,261.44

Finding the Fourth Proportional to 138,923.66, 191,714.63 and 75,261.44

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Solution

The fourth proportional to 138,923.66, 191,714.63 and 75,261.44 is: 103,860.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,923.66 : 191,714.63 = 75,261.44 : x
  2. Step 2: Convert to fraction form
    138,923.66/191,714.63 = 75,261.44/x
  3. Step 3: Cross multiply
    138,923.66x = 191,714.63 × 75,261.44
  4. Step 4: Simplify right side
    138,923.66x = 14,428,717,787.99
  5. Step 5: Solve for x
    x = 14,428,717,787.99/138,923.66
  6. Step 6: Final answer
    x = 103,860.77

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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.