Home / 120,031.56-180,202.86-75,747.24

Finding the Fourth Proportional to 120,031.56, 180,202.86 and 75,747.24

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Solution

The fourth proportional to 120,031.56, 180,202.86 and 75,747.24 is: 113,719.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,031.56 : 180,202.86 = 75,747.24 : x
  2. Step 2: Convert to fraction form
    120,031.56/180,202.86 = 75,747.24/x
  3. Step 3: Cross multiply
    120,031.56x = 180,202.86 × 75,747.24
  4. Step 4: Simplify right side
    120,031.56x = 13,649,869,285.11
  5. Step 5: Solve for x
    x = 13,649,869,285.11/120,031.56
  6. Step 6: Final answer
    x = 113,719.00

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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.