Home / 236,748.84-355,278.60-86,990.37

Finding the Fourth Proportional to 236,748.84, 355,278.60 and 86,990.37

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Solution

The fourth proportional to 236,748.84, 355,278.60 and 86,990.37 is: 130,542.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,748.84 : 355,278.60 = 86,990.37 : x
  2. Step 2: Convert to fraction form
    236,748.84/355,278.60 = 86,990.37/x
  3. Step 3: Cross multiply
    236,748.84x = 355,278.60 × 86,990.37
  4. Step 4: Simplify right side
    236,748.84x = 30,905,816,867.08
  5. Step 5: Solve for x
    x = 30,905,816,867.08/236,748.84
  6. Step 6: Final answer
    x = 130,542.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.