Home / 126,109.16-189,189.66-52,237.16

Finding the Fourth Proportional to 126,109.16, 189,189.66 and 52,237.16

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Solution

The fourth proportional to 126,109.16, 189,189.66 and 52,237.16 is: 78,366.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,109.16 : 189,189.66 = 52,237.16 : x
  2. Step 2: Convert to fraction form
    126,109.16/189,189.66 = 52,237.16/x
  3. Step 3: Cross multiply
    126,109.16x = 189,189.66 × 52,237.16
  4. Step 4: Simplify right side
    126,109.16x = 9,882,730,539.77
  5. Step 5: Solve for x
    x = 9,882,730,539.77/126,109.16
  6. Step 6: Final answer
    x = 78,366.48

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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.