Home / 156,172.76-234,229.58-76,130.32

Finding the Fourth Proportional to 156,172.76, 234,229.58 and 76,130.32

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Solution

The fourth proportional to 156,172.76, 234,229.58 and 76,130.32 is: 114,181.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,172.76 : 234,229.58 = 76,130.32 : x
  2. Step 2: Convert to fraction form
    156,172.76/234,229.58 = 76,130.32/x
  3. Step 3: Cross multiply
    156,172.76x = 234,229.58 × 76,130.32
  4. Step 4: Simplify right side
    156,172.76x = 17,831,973,843.69
  5. Step 5: Solve for x
    x = 17,831,973,843.69/156,172.76
  6. Step 6: Final answer
    x = 114,181.08

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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.