Home / 138,853.58-208,113.44-63,870.39

Finding the Fourth Proportional to 138,853.58, 208,113.44 and 63,870.39

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Solution

The fourth proportional to 138,853.58, 208,113.44 and 63,870.39 is: 95,728.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,853.58 : 208,113.44 = 63,870.39 : x
  2. Step 2: Convert to fraction form
    138,853.58/208,113.44 = 63,870.39/x
  3. Step 3: Cross multiply
    138,853.58x = 208,113.44 × 63,870.39
  4. Step 4: Simplify right side
    138,853.58x = 13,292,286,257.69
  5. Step 5: Solve for x
    x = 13,292,286,257.69/138,853.58
  6. Step 6: Final answer
    x = 95,728.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.