Home / 126,636.48-189,779.76-109,956.96

Finding the Fourth Proportional to 126,636.48, 189,779.76 and 109,956.96

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Solution

The fourth proportional to 126,636.48, 189,779.76 and 109,956.96 is: 164,783.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,636.48 : 189,779.76 = 109,956.96 : x
  2. Step 2: Convert to fraction form
    126,636.48/189,779.76 = 109,956.96/x
  3. Step 3: Cross multiply
    126,636.48x = 189,779.76 × 109,956.96
  4. Step 4: Simplify right side
    126,636.48x = 20,867,605,479.13
  5. Step 5: Solve for x
    x = 20,867,605,479.13/126,636.48
  6. Step 6: Final answer
    x = 164,783.52

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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.