Home / 109,530.30-164,295.45-39,384.30

Finding the Fourth Proportional to 109,530.30, 164,295.45 and 39,384.30

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Solution

The fourth proportional to 109,530.30, 164,295.45 and 39,384.30 is: 59,076.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,530.30 : 164,295.45 = 39,384.30 : x
  2. Step 2: Convert to fraction form
    109,530.30/164,295.45 = 39,384.30/x
  3. Step 3: Cross multiply
    109,530.30x = 164,295.45 × 39,384.30
  4. Step 4: Simplify right side
    109,530.30x = 6,470,661,291.44
  5. Step 5: Solve for x
    x = 6,470,661,291.44/109,530.30
  6. Step 6: Final answer
    x = 59,076.45

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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.