Home / 126,041.42-189,141-51,161.60

Finding the Fourth Proportional to 126,041.42, 189,141 and 51,161.60

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Solution

The fourth proportional to 126,041.42, 189,141 and 51,161.60 is: 76,774.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,041.42 : 189,141 = 51,161.60 : x
  2. Step 2: Convert to fraction form
    126,041.42/189,141 = 51,161.60/x
  3. Step 3: Cross multiply
    126,041.42x = 189,141 × 51,161.60
  4. Step 4: Simplify right side
    126,041.42x = 9,676,756,185.60
  5. Step 5: Solve for x
    x = 9,676,756,185.60/126,041.42
  6. Step 6: Final answer
    x = 76,774.41

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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.