Home / 213,203.35-319,295.17-122,972.53

Finding the Fourth Proportional to 213,203.35, 319,295.17 and 122,972.53

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Solution

The fourth proportional to 213,203.35, 319,295.17 and 122,972.53 is: 184,164.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,203.35 : 319,295.17 = 122,972.53 : x
  2. Step 2: Convert to fraction form
    213,203.35/319,295.17 = 122,972.53/x
  3. Step 3: Cross multiply
    213,203.35x = 319,295.17 × 122,972.53
  4. Step 4: Simplify right side
    213,203.35x = 39,264,534,825.84
  5. Step 5: Solve for x
    x = 39,264,534,825.84/213,203.35
  6. Step 6: Final answer
    x = 184,164.72

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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.