Home / 126,036.20-189,054.30-51,192.20

Finding the Fourth Proportional to 126,036.20, 189,054.30 and 51,192.20

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Solution

The fourth proportional to 126,036.20, 189,054.30 and 51,192.20 is: 76,788.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,036.20 : 189,054.30 = 51,192.20 : x
  2. Step 2: Convert to fraction form
    126,036.20/189,054.30 = 51,192.20/x
  3. Step 3: Cross multiply
    126,036.20x = 189,054.30 × 51,192.20
  4. Step 4: Simplify right side
    126,036.20x = 9,678,105,536.46
  5. Step 5: Solve for x
    x = 9,678,105,536.46/126,036.20
  6. Step 6: Final answer
    x = 76,788.30

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1.5x scale

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.