Home / 205,003.60-307,537.08-86,675.44

Finding the Fourth Proportional to 205,003.60, 307,537.08 and 86,675.44

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Solution

The fourth proportional to 205,003.60, 307,537.08 and 86,675.44 is: 130,026.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,003.60 : 307,537.08 = 86,675.44 : x
  2. Step 2: Convert to fraction form
    205,003.60/307,537.08 = 86,675.44/x
  3. Step 3: Cross multiply
    205,003.60x = 307,537.08 × 86,675.44
  4. Step 4: Simplify right side
    205,003.60x = 26,655,911,725.32
  5. Step 5: Solve for x
    x = 26,655,911,725.32/205,003.60
  6. Step 6: Final answer
    x = 130,026.55

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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.