Home / 138,916.43-191,704.77-75,254.48

Finding the Fourth Proportional to 138,916.43, 191,704.77 and 75,254.48

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Solution

The fourth proportional to 138,916.43, 191,704.77 and 75,254.48 is: 103,851.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,916.43 : 191,704.77 = 75,254.48 : x
  2. Step 2: Convert to fraction form
    138,916.43/191,704.77 = 75,254.48/x
  3. Step 3: Cross multiply
    138,916.43x = 191,704.77 × 75,254.48
  4. Step 4: Simplify right side
    138,916.43x = 14,426,642,403.60
  5. Step 5: Solve for x
    x = 14,426,642,403.60/138,916.43
  6. Step 6: Final answer
    x = 103,851.23

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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.