Home / 135,147.52-186,504.15-74,717.74

Finding the Fourth Proportional to 135,147.52, 186,504.15 and 74,717.74

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Solution

The fourth proportional to 135,147.52, 186,504.15 and 74,717.74 is: 103,110.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,147.52 : 186,504.15 = 74,717.74 : x
  2. Step 2: Convert to fraction form
    135,147.52/186,504.15 = 74,717.74/x
  3. Step 3: Cross multiply
    135,147.52x = 186,504.15 × 74,717.74
  4. Step 4: Simplify right side
    135,147.52x = 13,935,168,588.62
  5. Step 5: Solve for x
    x = 13,935,168,588.62/135,147.52
  6. Step 6: Final answer
    x = 103,110.80

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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.