Home / 135,222.52-186,603.56-74,791.66

Finding the Fourth Proportional to 135,222.52, 186,603.56 and 74,791.66

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Solution

The fourth proportional to 135,222.52, 186,603.56 and 74,791.66 is: 103,210.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,222.52 : 186,603.56 = 74,791.66 : x
  2. Step 2: Convert to fraction form
    135,222.52/186,603.56 = 74,791.66/x
  3. Step 3: Cross multiply
    135,222.52x = 186,603.56 × 74,791.66
  4. Step 4: Simplify right side
    135,222.52x = 13,956,390,014.31
  5. Step 5: Solve for x
    x = 13,956,390,014.31/135,222.52
  6. Step 6: Final answer
    x = 103,210.55

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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.