Home / 135,052.82-186,398.67-89,031.71

Finding the Fourth Proportional to 135,052.82, 186,398.67 and 89,031.71

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Solution

The fourth proportional to 135,052.82, 186,398.67 and 89,031.71 is: 122,880.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,052.82 : 186,398.67 = 89,031.71 : x
  2. Step 2: Convert to fraction form
    135,052.82/186,398.67 = 89,031.71/x
  3. Step 3: Cross multiply
    135,052.82x = 186,398.67 × 89,031.71
  4. Step 4: Simplify right side
    135,052.82x = 16,595,391,582.40
  5. Step 5: Solve for x
    x = 16,595,391,582.40/135,052.82
  6. Step 6: Final answer
    x = 122,880.75

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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.