Home / 126,044.20-189,347.90-105,308.20

Finding the Fourth Proportional to 126,044.20, 189,347.90 and 105,308.20

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Solution

The fourth proportional to 126,044.20, 189,347.90 and 105,308.20 is: 158,197.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,044.20 : 189,347.90 = 105,308.20 : x
  2. Step 2: Convert to fraction form
    126,044.20/189,347.90 = 105,308.20/x
  3. Step 3: Cross multiply
    126,044.20x = 189,347.90 × 105,308.20
  4. Step 4: Simplify right side
    126,044.20x = 19,939,886,522.78
  5. Step 5: Solve for x
    x = 19,939,886,522.78/126,044.20
  6. Step 6: Final answer
    x = 158,197.57

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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.