Home / 155,179.66-214,132.04-87,185.82

Finding the Fourth Proportional to 155,179.66, 214,132.04 and 87,185.82

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Solution

The fourth proportional to 155,179.66, 214,132.04 and 87,185.82 is: 120,307.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,179.66 : 214,132.04 = 87,185.82 : x
  2. Step 2: Convert to fraction form
    155,179.66/214,132.04 = 87,185.82/x
  3. Step 3: Cross multiply
    155,179.66x = 214,132.04 × 87,185.82
  4. Step 4: Simplify right side
    155,179.66x = 18,669,277,495.67
  5. Step 5: Solve for x
    x = 18,669,277,495.67/155,179.66
  6. Step 6: Final answer
    x = 120,307.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.