Home / 143,636.25-215,454.14-143,428.48

Finding the Fourth Proportional to 143,636.25, 215,454.14 and 143,428.48

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Solution

The fourth proportional to 143,636.25, 215,454.14 and 143,428.48 is: 215,142.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,636.25 : 215,454.14 = 143,428.48 : x
  2. Step 2: Convert to fraction form
    143,636.25/215,454.14 = 143,428.48/x
  3. Step 3: Cross multiply
    143,636.25x = 215,454.14 × 143,428.48
  4. Step 4: Simplify right side
    143,636.25x = 30,902,259,092.76
  5. Step 5: Solve for x
    x = 30,902,259,092.76/143,636.25
  6. Step 6: Final answer
    x = 215,142.49

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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.