Home / 206,733.21-310,143.98-71,801.45

Finding the Fourth Proportional to 206,733.21, 310,143.98 and 71,801.45

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Solution

The fourth proportional to 206,733.21, 310,143.98 and 71,801.45 is: 107,717.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,733.21 : 310,143.98 = 71,801.45 : x
  2. Step 2: Convert to fraction form
    206,733.21/310,143.98 = 71,801.45/x
  3. Step 3: Cross multiply
    206,733.21x = 310,143.98 × 71,801.45
  4. Step 4: Simplify right side
    206,733.21x = 22,268,788,427.63
  5. Step 5: Solve for x
    x = 22,268,788,427.63/206,733.21
  6. Step 6: Final answer
    x = 107,717.52

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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.