Home / 205,435.95-283,681.94-129,087.33

Finding the Fourth Proportional to 205,435.95, 283,681.94 and 129,087.33

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Solution

The fourth proportional to 205,435.95, 283,681.94 and 129,087.33 is: 178,253.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,435.95 : 283,681.94 = 129,087.33 : x
  2. Step 2: Convert to fraction form
    205,435.95/283,681.94 = 129,087.33/x
  3. Step 3: Cross multiply
    205,435.95x = 283,681.94 × 129,087.33
  4. Step 4: Simplify right side
    205,435.95x = 36,619,744,203.82
  5. Step 5: Solve for x
    x = 36,619,744,203.82/205,435.95
  6. Step 6: Final answer
    x = 178,253.83

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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.