Home / 126,916.80-174,790.08-124,161.72

Finding the Fourth Proportional to 126,916.80, 174,790.08 and 124,161.72

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Solution

The fourth proportional to 126,916.80, 174,790.08 and 124,161.72 is: 170,995.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,916.80 : 174,790.08 = 124,161.72 : x
  2. Step 2: Convert to fraction form
    126,916.80/174,790.08 = 124,161.72/x
  3. Step 3: Cross multiply
    126,916.80x = 174,790.08 × 124,161.72
  4. Step 4: Simplify right side
    126,916.80x = 21,702,236,971.74
  5. Step 5: Solve for x
    x = 21,702,236,971.74/126,916.80
  6. Step 6: Final answer
    x = 170,995.78

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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.