Home / 126,029.70-189,044.55-90,600.30

Finding the Fourth Proportional to 126,029.70, 189,044.55 and 90,600.30

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Solution

The fourth proportional to 126,029.70, 189,044.55 and 90,600.30 is: 135,900.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,029.70 : 189,044.55 = 90,600.30 : x
  2. Step 2: Convert to fraction form
    126,029.70/189,044.55 = 90,600.30/x
  3. Step 3: Cross multiply
    126,029.70x = 189,044.55 × 90,600.30
  4. Step 4: Simplify right side
    126,029.70x = 17,127,492,943.37
  5. Step 5: Solve for x
    x = 17,127,492,943.37/126,029.70
  6. Step 6: Final answer
    x = 135,900.45

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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.