Home / 135,146.52-186,502.77-74,716.74

Finding the Fourth Proportional to 135,146.52, 186,502.77 and 74,716.74

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Solution

The fourth proportional to 135,146.52, 186,502.77 and 74,716.74 is: 103,109.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,146.52 : 186,502.77 = 74,716.74 : x
  2. Step 2: Convert to fraction form
    135,146.52/186,502.77 = 74,716.74/x
  3. Step 3: Cross multiply
    135,146.52x = 186,502.77 × 74,716.74
  4. Step 4: Simplify right side
    135,146.52x = 13,934,878,975.37
  5. Step 5: Solve for x
    x = 13,934,878,975.37/135,146.52
  6. Step 6: Final answer
    x = 103,109.42

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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.