Home / 156,641.25-234,918.78-76,638.06

Finding the Fourth Proportional to 156,641.25, 234,918.78 and 76,638.06

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Solution

The fourth proportional to 156,641.25, 234,918.78 and 76,638.06 is: 114,936.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,641.25 : 234,918.78 = 76,638.06 : x
  2. Step 2: Convert to fraction form
    156,641.25/234,918.78 = 76,638.06/x
  3. Step 3: Cross multiply
    156,641.25x = 234,918.78 × 76,638.06
  4. Step 4: Simplify right side
    156,641.25x = 18,003,719,556.77
  5. Step 5: Solve for x
    x = 18,003,719,556.77/156,641.25
  6. Step 6: Final answer
    x = 114,936.01

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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.