Home / 210,569.36-315,819.43-75,605.49

Finding the Fourth Proportional to 210,569.36, 315,819.43 and 75,605.49

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Solution

The fourth proportional to 210,569.36, 315,819.43 and 75,605.49 is: 113,395.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,569.36 : 315,819.43 = 75,605.49 : x
  2. Step 2: Convert to fraction form
    210,569.36/315,819.43 = 75,605.49/x
  3. Step 3: Cross multiply
    210,569.36x = 315,819.43 × 75,605.49
  4. Step 4: Simplify right side
    210,569.36x = 23,877,682,567.66
  5. Step 5: Solve for x
    x = 23,877,682,567.66/210,569.36
  6. Step 6: Final answer
    x = 113,395.81

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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.