Home / 168,938.22-253,140.57-137,193.81

Finding the Fourth Proportional to 168,938.22, 253,140.57 and 137,193.81

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Solution

The fourth proportional to 168,938.22, 253,140.57 and 137,193.81 is: 205,574.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,938.22 : 253,140.57 = 137,193.81 : x
  2. Step 2: Convert to fraction form
    168,938.22/253,140.57 = 137,193.81/x
  3. Step 3: Cross multiply
    168,938.22x = 253,140.57 × 137,193.81
  4. Step 4: Simplify right side
    168,938.22x = 34,729,319,263.87
  5. Step 5: Solve for x
    x = 34,729,319,263.87/168,938.22
  6. Step 6: Final answer
    x = 205,574.09

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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.