Home / 126,047.75-189,071.62-86,484.92

Finding the Fourth Proportional to 126,047.75, 189,071.62 and 86,484.92

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Solution

The fourth proportional to 126,047.75, 189,071.62 and 86,484.92 is: 129,727.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,047.75 : 189,071.62 = 86,484.92 : x
  2. Step 2: Convert to fraction form
    126,047.75/189,071.62 = 86,484.92/x
  3. Step 3: Cross multiply
    126,047.75x = 189,071.62 × 86,484.92
  4. Step 4: Simplify right side
    126,047.75x = 16,351,842,768.40
  5. Step 5: Solve for x
    x = 16,351,842,768.40/126,047.75
  6. Step 6: Final answer
    x = 129,727.37

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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.