Home / 138,953.32-191,756.46-75,291.58

Finding the Fourth Proportional to 138,953.32, 191,756.46 and 75,291.58

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Solution

The fourth proportional to 138,953.32, 191,756.46 and 75,291.58 is: 103,902.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,953.32 : 191,756.46 = 75,291.58 : x
  2. Step 2: Convert to fraction form
    138,953.32/191,756.46 = 75,291.58/x
  3. Step 3: Cross multiply
    138,953.32x = 191,756.46 × 75,291.58
  4. Step 4: Simplify right side
    138,953.32x = 14,437,646,848.61
  5. Step 5: Solve for x
    x = 14,437,646,848.61/138,953.32
  6. Step 6: Final answer
    x = 103,902.86

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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.