Home / 135,332.58-186,759.33-74,907.39

Finding the Fourth Proportional to 135,332.58, 186,759.33 and 74,907.39

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Solution

The fourth proportional to 135,332.58, 186,759.33 and 74,907.39 is: 103,372.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,332.58 : 186,759.33 = 74,907.39 : x
  2. Step 2: Convert to fraction form
    135,332.58/186,759.33 = 74,907.39/x
  3. Step 3: Cross multiply
    135,332.58x = 186,759.33 × 74,907.39
  4. Step 4: Simplify right side
    135,332.58x = 13,989,653,968.45
  5. Step 5: Solve for x
    x = 13,989,653,968.45/135,332.58
  6. Step 6: Final answer
    x = 103,372.40

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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.