Home / 156,643.20-234,679.68-139,847.04

Finding the Fourth Proportional to 156,643.20, 234,679.68 and 139,847.04

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Solution

The fourth proportional to 156,643.20, 234,679.68 and 139,847.04 is: 209,516.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,643.20 : 234,679.68 = 139,847.04 : x
  2. Step 2: Convert to fraction form
    156,643.20/234,679.68 = 139,847.04/x
  3. Step 3: Cross multiply
    156,643.20x = 234,679.68 × 139,847.04
  4. Step 4: Simplify right side
    156,643.20x = 32,819,258,596.15
  5. Step 5: Solve for x
    x = 32,819,258,596.15/156,643.20
  6. Step 6: Final answer
    x = 209,516.01

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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.