Home / 236,784.40-355,138.22-86,987.84

Finding the Fourth Proportional to 236,784.40, 355,138.22 and 86,987.84

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Solution

The fourth proportional to 236,784.40, 355,138.22 and 86,987.84 is: 130,467.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,784.40 : 355,138.22 = 86,987.84 : x
  2. Step 2: Convert to fraction form
    236,784.40/355,138.22 = 86,987.84/x
  3. Step 3: Cross multiply
    236,784.40x = 355,138.22 × 86,987.84
  4. Step 4: Simplify right side
    236,784.40x = 30,892,706,659.24
  5. Step 5: Solve for x
    x = 30,892,706,659.24/236,784.40
  6. Step 6: Final answer
    x = 130,467.66

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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.