Home / 126,537.10-174,612.87-72,813.44

Finding the Fourth Proportional to 126,537.10, 174,612.87 and 72,813.44

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Solution

The fourth proportional to 126,537.10, 174,612.87 and 72,813.44 is: 100,477.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,537.10 : 174,612.87 = 72,813.44 : x
  2. Step 2: Convert to fraction form
    126,537.10/174,612.87 = 72,813.44/x
  3. Step 3: Cross multiply
    126,537.10x = 174,612.87 × 72,813.44
  4. Step 4: Simplify right side
    126,537.10x = 12,714,163,732.97
  5. Step 5: Solve for x
    x = 12,714,163,732.97/126,537.10
  6. Step 6: Final answer
    x = 100,477.76

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1.5x scale

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.