Home / 126,001.70-189,002.55-51,157.70

Finding the Fourth Proportional to 126,001.70, 189,002.55 and 51,157.70

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Solution

The fourth proportional to 126,001.70, 189,002.55 and 51,157.70 is: 76,736.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,001.70 : 189,002.55 = 51,157.70 : x
  2. Step 2: Convert to fraction form
    126,001.70/189,002.55 = 51,157.70/x
  3. Step 3: Cross multiply
    126,001.70x = 189,002.55 × 51,157.70
  4. Step 4: Simplify right side
    126,001.70x = 9,668,935,752.14
  5. Step 5: Solve for x
    x = 9,668,935,752.14/126,001.70
  6. Step 6: Final answer
    x = 76,736.55

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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.