Home / 213,666.04-320,380.73-87,394.95

Finding the Fourth Proportional to 213,666.04, 320,380.73 and 87,394.95

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Solution

The fourth proportional to 213,666.04, 320,380.73 and 87,394.95 is: 131,044.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,666.04 : 320,380.73 = 87,394.95 : x
  2. Step 2: Convert to fraction form
    213,666.04/320,380.73 = 87,394.95/x
  3. Step 3: Cross multiply
    213,666.04x = 320,380.73 × 87,394.95
  4. Step 4: Simplify right side
    213,666.04x = 27,999,658,097.80
  5. Step 5: Solve for x
    x = 27,999,658,097.80/213,666.04
  6. Step 6: Final answer
    x = 131,044.03

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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.