Home / 134,639.58-185,803.80-74,212.36

Finding the Fourth Proportional to 134,639.58, 185,803.80 and 74,212.36

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Solution

The fourth proportional to 134,639.58, 185,803.80 and 74,212.36 is: 102,413.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,639.58 : 185,803.80 = 74,212.36 : x
  2. Step 2: Convert to fraction form
    134,639.58/185,803.80 = 74,212.36/x
  3. Step 3: Cross multiply
    134,639.58x = 185,803.80 × 74,212.36
  4. Step 4: Simplify right side
    134,639.58x = 13,788,938,494.97
  5. Step 5: Solve for x
    x = 13,788,938,494.97/134,639.58
  6. Step 6: Final answer
    x = 102,413.71

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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.