Home / 126,936.02-190,354.80-67,739.40

Finding the Fourth Proportional to 126,936.02, 190,354.80 and 67,739.40

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Solution

The fourth proportional to 126,936.02, 190,354.80 and 67,739.40 is: 101,582.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,936.02 : 190,354.80 = 67,739.40 : x
  2. Step 2: Convert to fraction form
    126,936.02/190,354.80 = 67,739.40/x
  3. Step 3: Cross multiply
    126,936.02x = 190,354.80 × 67,739.40
  4. Step 4: Simplify right side
    126,936.02x = 12,894,519,939.12
  5. Step 5: Solve for x
    x = 12,894,519,939.12/126,936.02
  6. Step 6: Final answer
    x = 101,582.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.