Home / 126,073.40-189,110.10-70,662.20

Finding the Fourth Proportional to 126,073.40, 189,110.10 and 70,662.20

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Solution

The fourth proportional to 126,073.40, 189,110.10 and 70,662.20 is: 105,993.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,073.40 : 189,110.10 = 70,662.20 : x
  2. Step 2: Convert to fraction form
    126,073.40/189,110.10 = 70,662.20/x
  3. Step 3: Cross multiply
    126,073.40x = 189,110.10 × 70,662.20
  4. Step 4: Simplify right side
    126,073.40x = 13,362,935,708.22
  5. Step 5: Solve for x
    x = 13,362,935,708.22/126,073.40
  6. Step 6: Final answer
    x = 105,993.30

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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.