Home / 205,149.60-307,693.62-64,890

Finding the Fourth Proportional to 205,149.60, 307,693.62 and 64,890

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Solution

The fourth proportional to 205,149.60, 307,693.62 and 64,890 is: 97,325.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,149.60 : 307,693.62 = 64,890 : x
  2. Step 2: Convert to fraction form
    205,149.60/307,693.62 = 64,890/x
  3. Step 3: Cross multiply
    205,149.60x = 307,693.62 × 64,890
  4. Step 4: Simplify right side
    205,149.60x = 19,966,239,001.80
  5. Step 5: Solve for x
    x = 19,966,239,001.80/205,149.60
  6. Step 6: Final answer
    x = 97,325.26

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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.