Home / 143,411.04-215,087.31-136,297.80

Finding the Fourth Proportional to 143,411.04, 215,087.31 and 136,297.80

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Solution

The fourth proportional to 143,411.04, 215,087.31 and 136,297.80 is: 204,418.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,411.04 : 215,087.31 = 136,297.80 : x
  2. Step 2: Convert to fraction form
    143,411.04/215,087.31 = 136,297.80/x
  3. Step 3: Cross multiply
    143,411.04x = 215,087.31 × 136,297.80
  4. Step 4: Simplify right side
    143,411.04x = 29,315,927,160.92
  5. Step 5: Solve for x
    x = 29,315,927,160.92/143,411.04
  6. Step 6: Final answer
    x = 204,418.90

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1.5x scale

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.