Home / 142,035.25-212,997.29-53,240.33

Finding the Fourth Proportional to 142,035.25, 212,997.29 and 53,240.33

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Solution

The fourth proportional to 142,035.25, 212,997.29 and 53,240.33 is: 79,839.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,035.25 : 212,997.29 = 53,240.33 : x
  2. Step 2: Convert to fraction form
    142,035.25/212,997.29 = 53,240.33/x
  3. Step 3: Cross multiply
    142,035.25x = 212,997.29 × 53,240.33
  4. Step 4: Simplify right side
    142,035.25x = 11,340,044,677.52
  5. Step 5: Solve for x
    x = 11,340,044,677.52/142,035.25
  6. Step 6: Final answer
    x = 79,839.65

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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.