Home / 126,172.08-189,308.61-51,297.98

Finding the Fourth Proportional to 126,172.08, 189,308.61 and 51,297.98

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Solution

The fourth proportional to 126,172.08, 189,308.61 and 51,297.98 is: 76,967.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,172.08 : 189,308.61 = 51,297.98 : x
  2. Step 2: Convert to fraction form
    126,172.08/189,308.61 = 51,297.98/x
  3. Step 3: Cross multiply
    126,172.08x = 189,308.61 × 51,297.98
  4. Step 4: Simplify right side
    126,172.08x = 9,711,148,343.06
  5. Step 5: Solve for x
    x = 9,711,148,343.06/126,172.08
  6. Step 6: Final answer
    x = 76,967.49

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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.