Home / 126,856.02-190,321.40-38,123.06

Finding the Fourth Proportional to 126,856.02, 190,321.40 and 38,123.06

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Solution

The fourth proportional to 126,856.02, 190,321.40 and 38,123.06 is: 57,195.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,856.02 : 190,321.40 = 38,123.06 : x
  2. Step 2: Convert to fraction form
    126,856.02/190,321.40 = 38,123.06/x
  3. Step 3: Cross multiply
    126,856.02x = 190,321.40 × 38,123.06
  4. Step 4: Simplify right side
    126,856.02x = 7,255,633,080.74
  5. Step 5: Solve for x
    x = 7,255,633,080.74/126,856.02
  6. Step 6: Final answer
    x = 57,195.81

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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.