Home / 236,785.50-354,956.80-86,985.55

Finding the Fourth Proportional to 236,785.50, 354,956.80 and 86,985.55

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Solution

The fourth proportional to 236,785.50, 354,956.80 and 86,985.55 is: 130,396.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,785.50 : 354,956.80 = 86,985.55 : x
  2. Step 2: Convert to fraction form
    236,785.50/354,956.80 = 86,985.55/x
  3. Step 3: Cross multiply
    236,785.50x = 354,956.80 × 86,985.55
  4. Step 4: Simplify right side
    236,785.50x = 30,876,112,474.24
  5. Step 5: Solve for x
    x = 30,876,112,474.24/236,785.50
  6. Step 6: Final answer
    x = 130,396.97

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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.