Home / 138,916.14-191,704.10-75,254.19

Finding the Fourth Proportional to 138,916.14, 191,704.10 and 75,254.19

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Solution

The fourth proportional to 138,916.14, 191,704.10 and 75,254.19 is: 103,850.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,916.14 : 191,704.10 = 75,254.19 : x
  2. Step 2: Convert to fraction form
    138,916.14/191,704.10 = 75,254.19/x
  3. Step 3: Cross multiply
    138,916.14x = 191,704.10 × 75,254.19
  4. Step 4: Simplify right side
    138,916.14x = 14,426,536,388.91
  5. Step 5: Solve for x
    x = 14,426,536,388.91/138,916.14
  6. Step 6: Final answer
    x = 103,850.69

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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.