Home / 129,749.40-194,624.10-73,762.20

Finding the Fourth Proportional to 129,749.40, 194,624.10 and 73,762.20

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Solution

The fourth proportional to 129,749.40, 194,624.10 and 73,762.20 is: 110,643.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,749.40 : 194,624.10 = 73,762.20 : x
  2. Step 2: Convert to fraction form
    129,749.40/194,624.10 = 73,762.20/x
  3. Step 3: Cross multiply
    129,749.40x = 194,624.10 × 73,762.20
  4. Step 4: Simplify right side
    129,749.40x = 14,355,901,789.02
  5. Step 5: Solve for x
    x = 14,355,901,789.02/129,749.40
  6. Step 6: Final answer
    x = 110,643.30

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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.