Home / 126,749.18-190,123.25-31,979.58

Finding the Fourth Proportional to 126,749.18, 190,123.25 and 31,979.58

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Solution

The fourth proportional to 126,749.18, 190,123.25 and 31,979.58 is: 47,969.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,749.18 : 190,123.25 = 31,979.58 : x
  2. Step 2: Convert to fraction form
    126,749.18/190,123.25 = 31,979.58/x
  3. Step 3: Cross multiply
    126,749.18x = 190,123.25 × 31,979.58
  4. Step 4: Simplify right side
    126,749.18x = 6,080,061,523.34
  5. Step 5: Solve for x
    x = 6,080,061,523.34/126,749.18
  6. Step 6: Final answer
    x = 47,969.24

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1.5x scale

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.