Home / 109,605.08-151,359.48-103,634.48

Finding the Fourth Proportional to 109,605.08, 151,359.48 and 103,634.48

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Solution

The fourth proportional to 109,605.08, 151,359.48 and 103,634.48 is: 143,114.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,605.08 : 151,359.48 = 103,634.48 : x
  2. Step 2: Convert to fraction form
    109,605.08/151,359.48 = 103,634.48/x
  3. Step 3: Cross multiply
    109,605.08x = 151,359.48 × 103,634.48
  4. Step 4: Simplify right side
    109,605.08x = 15,686,061,002.87
  5. Step 5: Solve for x
    x = 15,686,061,002.87/109,605.08
  6. Step 6: Final answer
    x = 143,114.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.