Home / 126,068.06-189,102.09-47,219.42

Finding the Fourth Proportional to 126,068.06, 189,102.09 and 47,219.42

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Solution

The fourth proportional to 126,068.06, 189,102.09 and 47,219.42 is: 70,829.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,068.06 : 189,102.09 = 47,219.42 : x
  2. Step 2: Convert to fraction form
    126,068.06/189,102.09 = 47,219.42/x
  3. Step 3: Cross multiply
    126,068.06x = 189,102.09 × 47,219.42
  4. Step 4: Simplify right side
    126,068.06x = 8,929,291,660.42
  5. Step 5: Solve for x
    x = 8,929,291,660.42/126,068.06
  6. Step 6: Final answer
    x = 70,829.13

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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.