Home / 156,639.80-234,830.10-82,767.80

Finding the Fourth Proportional to 156,639.80, 234,830.10 and 82,767.80

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Solution

The fourth proportional to 156,639.80, 234,830.10 and 82,767.80 is: 124,083.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,639.80 : 234,830.10 = 82,767.80 : x
  2. Step 2: Convert to fraction form
    156,639.80/234,830.10 = 82,767.80/x
  3. Step 3: Cross multiply
    156,639.80x = 234,830.10 × 82,767.80
  4. Step 4: Simplify right side
    156,639.80x = 19,436,370,750.78
  5. Step 5: Solve for x
    x = 19,436,370,750.78/156,639.80
  6. Step 6: Final answer
    x = 124,083.22

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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.