Home / 138,810.14-191,558.06-75,147.94

Finding the Fourth Proportional to 138,810.14, 191,558.06 and 75,147.94

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Solution

The fourth proportional to 138,810.14, 191,558.06 and 75,147.94 is: 103,704.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,810.14 : 191,558.06 = 75,147.94 : x
  2. Step 2: Convert to fraction form
    138,810.14/191,558.06 = 75,147.94/x
  3. Step 3: Cross multiply
    138,810.14x = 191,558.06 × 75,147.94
  4. Step 4: Simplify right side
    138,810.14x = 14,395,192,265.87
  5. Step 5: Solve for x
    x = 14,395,192,265.87/138,810.14
  6. Step 6: Final answer
    x = 103,704.18

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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.