Home / 126,999.12-190,538.16-52,125.36

Finding the Fourth Proportional to 126,999.12, 190,538.16 and 52,125.36

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Solution

The fourth proportional to 126,999.12, 190,538.16 and 52,125.36 is: 78,204.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,999.12 : 190,538.16 = 52,125.36 : x
  2. Step 2: Convert to fraction form
    126,999.12/190,538.16 = 52,125.36/x
  3. Step 3: Cross multiply
    126,999.12x = 190,538.16 × 52,125.36
  4. Step 4: Simplify right side
    126,999.12x = 9,931,870,183.74
  5. Step 5: Solve for x
    x = 9,931,870,183.74/126,999.12
  6. Step 6: Final answer
    x = 78,204.24

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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.