Home / 126,652.02-174,760.11-72,939.30

Finding the Fourth Proportional to 126,652.02, 174,760.11 and 72,939.30

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Solution

The fourth proportional to 126,652.02, 174,760.11 and 72,939.30 is: 100,644.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,652.02 : 174,760.11 = 72,939.30 : x
  2. Step 2: Convert to fraction form
    126,652.02/174,760.11 = 72,939.30/x
  3. Step 3: Cross multiply
    126,652.02x = 174,760.11 × 72,939.30
  4. Step 4: Simplify right side
    126,652.02x = 12,746,880,091.32
  5. Step 5: Solve for x
    x = 12,746,880,091.32/126,652.02
  6. Step 6: Final answer
    x = 100,644.90

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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.