Home / 146,142.90-201,656.97-81,604.26

Finding the Fourth Proportional to 146,142.90, 201,656.97 and 81,604.26

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Solution

The fourth proportional to 146,142.90, 201,656.97 and 81,604.26 is: 112,602.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,142.90 : 201,656.97 = 81,604.26 : x
  2. Step 2: Convert to fraction form
    146,142.90/201,656.97 = 81,604.26/x
  3. Step 3: Cross multiply
    146,142.90x = 201,656.97 × 81,604.26
  4. Step 4: Simplify right side
    146,142.90x = 16,456,067,810.69
  5. Step 5: Solve for x
    x = 16,456,067,810.69/146,142.90
  6. Step 6: Final answer
    x = 112,602.58

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1.5x scale

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.