Home / 126,631.40-189,947.10-97,106.90

Finding the Fourth Proportional to 126,631.40, 189,947.10 and 97,106.90

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Solution

The fourth proportional to 126,631.40, 189,947.10 and 97,106.90 is: 145,660.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,631.40 : 189,947.10 = 97,106.90 : x
  2. Step 2: Convert to fraction form
    126,631.40/189,947.10 = 97,106.90/x
  3. Step 3: Cross multiply
    126,631.40x = 189,947.10 × 97,106.90
  4. Step 4: Simplify right side
    126,631.40x = 18,445,174,044.99
  5. Step 5: Solve for x
    x = 18,445,174,044.99/126,631.40
  6. Step 6: Final answer
    x = 145,660.35

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Similar ratio
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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.