Home / 134,647.96-185,815.43-74,220.93

Finding the Fourth Proportional to 134,647.96, 185,815.43 and 74,220.93

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Solution

The fourth proportional to 134,647.96, 185,815.43 and 74,220.93 is: 102,425.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,647.96 : 185,815.43 = 74,220.93 : x
  2. Step 2: Convert to fraction form
    134,647.96/185,815.43 = 74,220.93/x
  3. Step 3: Cross multiply
    134,647.96x = 185,815.43 × 74,220.93
  4. Step 4: Simplify right side
    134,647.96x = 13,791,394,022.95
  5. Step 5: Solve for x
    x = 13,791,394,022.95/134,647.96
  6. Step 6: Final answer
    x = 102,425.57

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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.