Home / 126,629.40-189,944.10-97,104.90

Finding the Fourth Proportional to 126,629.40, 189,944.10 and 97,104.90

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Solution

The fourth proportional to 126,629.40, 189,944.10 and 97,104.90 is: 145,657.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,629.40 : 189,944.10 = 97,104.90 : x
  2. Step 2: Convert to fraction form
    126,629.40/189,944.10 = 97,104.90/x
  3. Step 3: Cross multiply
    126,629.40x = 189,944.10 × 97,104.90
  4. Step 4: Simplify right side
    126,629.40x = 18,444,502,836.09
  5. Step 5: Solve for x
    x = 18,444,502,836.09/126,629.40
  6. Step 6: Final answer
    x = 145,657.35

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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.