Home / 205,037.31-307,693.24-85,094.36

Finding the Fourth Proportional to 205,037.31, 307,693.24 and 85,094.36

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Solution

The fourth proportional to 205,037.31, 307,693.24 and 85,094.36 is: 127,698.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,037.31 : 307,693.24 = 85,094.36 : x
  2. Step 2: Convert to fraction form
    205,037.31/307,693.24 = 85,094.36/x
  3. Step 3: Cross multiply
    205,037.31x = 307,693.24 × 85,094.36
  4. Step 4: Simplify right side
    205,037.31x = 26,182,960,946.20
  5. Step 5: Solve for x
    x = 26,182,960,946.20/205,037.31
  6. Step 6: Final answer
    x = 127,698.52

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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.