Home / 199,220.78-274,916.67-108,574.80

Finding the Fourth Proportional to 199,220.78, 274,916.67 and 108,574.80

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Solution

The fourth proportional to 199,220.78, 274,916.67 and 108,574.80 is: 149,828.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,220.78 : 274,916.67 = 108,574.80 : x
  2. Step 2: Convert to fraction form
    199,220.78/274,916.67 = 108,574.80/x
  3. Step 3: Cross multiply
    199,220.78x = 274,916.67 × 108,574.80
  4. Step 4: Simplify right side
    199,220.78x = 29,849,022,461.92
  5. Step 5: Solve for x
    x = 29,849,022,461.92/199,220.78
  6. Step 6: Final answer
    x = 149,828.86

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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.