Home / 135,326.09-186,741.86-74,893.06

Finding the Fourth Proportional to 135,326.09, 186,741.86 and 74,893.06

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Solution

The fourth proportional to 135,326.09, 186,741.86 and 74,893.06 is: 103,347.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,326.09 : 186,741.86 = 74,893.06 : x
  2. Step 2: Convert to fraction form
    135,326.09/186,741.86 = 74,893.06/x
  3. Step 3: Cross multiply
    135,326.09x = 186,741.86 × 74,893.06
  4. Step 4: Simplify right side
    135,326.09x = 13,985,668,134.03
  5. Step 5: Solve for x
    x = 13,985,668,134.03/135,326.09
  6. Step 6: Final answer
    x = 103,347.90

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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.