Home / 134,765.45-202,312.20-68,171.30

Finding the Fourth Proportional to 134,765.45, 202,312.20 and 68,171.30

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Solution

The fourth proportional to 134,765.45, 202,312.20 and 68,171.30 is: 102,339.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,765.45 : 202,312.20 = 68,171.30 : x
  2. Step 2: Convert to fraction form
    134,765.45/202,312.20 = 68,171.30/x
  3. Step 3: Cross multiply
    134,765.45x = 202,312.20 × 68,171.30
  4. Step 4: Simplify right side
    134,765.45x = 13,791,885,679.86
  5. Step 5: Solve for x
    x = 13,791,885,679.86/134,765.45
  6. Step 6: Final answer
    x = 102,339.92

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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.