Home / 137,900.60-190,296.42-76,643.94

Finding the Fourth Proportional to 137,900.60, 190,296.42 and 76,643.94

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Solution

The fourth proportional to 137,900.60, 190,296.42 and 76,643.94 is: 105,765.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,900.60 : 190,296.42 = 76,643.94 : x
  2. Step 2: Convert to fraction form
    137,900.60/190,296.42 = 76,643.94/x
  3. Step 3: Cross multiply
    137,900.60x = 190,296.42 × 76,643.94
  4. Step 4: Simplify right side
    137,900.60x = 14,585,067,396.69
  5. Step 5: Solve for x
    x = 14,585,067,396.69/137,900.60
  6. Step 6: Final answer
    x = 105,765.08

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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.