Home / 202,684.74-279,636.75-131,155.26

Finding the Fourth Proportional to 202,684.74, 279,636.75 and 131,155.26

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Solution

The fourth proportional to 202,684.74, 279,636.75 and 131,155.26 is: 180,950.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,684.74 : 279,636.75 = 131,155.26 : x
  2. Step 2: Convert to fraction form
    202,684.74/279,636.75 = 131,155.26/x
  3. Step 3: Cross multiply
    202,684.74x = 279,636.75 × 131,155.26
  4. Step 4: Simplify right side
    202,684.74x = 36,675,830,651.81
  5. Step 5: Solve for x
    x = 36,675,830,651.81/202,684.74
  6. Step 6: Final answer
    x = 180,950.13

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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.