Home / 155,083.98-232,438.17-70,728.57

Finding the Fourth Proportional to 155,083.98, 232,438.17 and 70,728.57

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Solution

The fourth proportional to 155,083.98, 232,438.17 and 70,728.57 is: 106,007.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,083.98 : 232,438.17 = 70,728.57 : x
  2. Step 2: Convert to fraction form
    155,083.98/232,438.17 = 70,728.57/x
  3. Step 3: Cross multiply
    155,083.98x = 232,438.17 × 70,728.57
  4. Step 4: Simplify right side
    155,083.98x = 16,440,019,377.52
  5. Step 5: Solve for x
    x = 16,440,019,377.52/155,083.98
  6. Step 6: Final answer
    x = 106,007.21

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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.