Home / 135,329.58-186,755.18-74,904.39

Finding the Fourth Proportional to 135,329.58, 186,755.18 and 74,904.39

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Solution

The fourth proportional to 135,329.58, 186,755.18 and 74,904.39 is: 103,368.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,329.58 : 186,755.18 = 74,904.39 : x
  2. Step 2: Convert to fraction form
    135,329.58/186,755.18 = 74,904.39/x
  3. Step 3: Cross multiply
    135,329.58x = 186,755.18 × 74,904.39
  4. Step 4: Simplify right side
    135,329.58x = 13,988,782,462.72
  5. Step 5: Solve for x
    x = 13,988,782,462.72/135,329.58
  6. Step 6: Final answer
    x = 103,368.25

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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.