Home / 156,664.80-234,997.20-139,606.20

Finding the Fourth Proportional to 156,664.80, 234,997.20 and 139,606.20

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Solution

The fourth proportional to 156,664.80, 234,997.20 and 139,606.20 is: 209,409.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,664.80 : 234,997.20 = 139,606.20 : x
  2. Step 2: Convert to fraction form
    156,664.80/234,997.20 = 139,606.20/x
  3. Step 3: Cross multiply
    156,664.80x = 234,997.20 × 139,606.20
  4. Step 4: Simplify right side
    156,664.80x = 32,807,066,102.64
  5. Step 5: Solve for x
    x = 32,807,066,102.64/156,664.80
  6. Step 6: Final answer
    x = 209,409.30

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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.