Home / 109,631.80-164,447.70-39,485.80

Finding the Fourth Proportional to 109,631.80, 164,447.70 and 39,485.80

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Solution

The fourth proportional to 109,631.80, 164,447.70 and 39,485.80 is: 59,228.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,631.80 : 164,447.70 = 39,485.80 : x
  2. Step 2: Convert to fraction form
    109,631.80/164,447.70 = 39,485.80/x
  3. Step 3: Cross multiply
    109,631.80x = 164,447.70 × 39,485.80
  4. Step 4: Simplify right side
    109,631.80x = 6,493,348,992.66
  5. Step 5: Solve for x
    x = 6,493,348,992.66/109,631.80
  6. Step 6: Final answer
    x = 59,228.70

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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.