Home / 203,315.74-280,577.39-112,673.19

Finding the Fourth Proportional to 203,315.74, 280,577.39 and 112,673.19

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Solution

The fourth proportional to 203,315.74, 280,577.39 and 112,673.19 is: 155,489.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,315.74 : 280,577.39 = 112,673.19 : x
  2. Step 2: Convert to fraction form
    203,315.74/280,577.39 = 112,673.19/x
  3. Step 3: Cross multiply
    203,315.74x = 280,577.39 × 112,673.19
  4. Step 4: Simplify right side
    203,315.74x = 31,613,550,061.97
  5. Step 5: Solve for x
    x = 31,613,550,061.97/203,315.74
  6. Step 6: Final answer
    x = 155,489.93

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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.