Home / 126,031.43-189,102.73-66,852.58

Finding the Fourth Proportional to 126,031.43, 189,102.73 and 66,852.58

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Solution

The fourth proportional to 126,031.43, 189,102.73 and 66,852.58 is: 100,308.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,031.43 : 189,102.73 = 66,852.58 : x
  2. Step 2: Convert to fraction form
    126,031.43/189,102.73 = 66,852.58/x
  3. Step 3: Cross multiply
    126,031.43x = 189,102.73 × 66,852.58
  4. Step 4: Simplify right side
    126,031.43x = 12,642,005,385.54
  5. Step 5: Solve for x
    x = 12,642,005,385.54/126,031.43
  6. Step 6: Final answer
    x = 100,308.35

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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.