Home / 168,090.39-252,208.89-55,785.51

Finding the Fourth Proportional to 168,090.39, 252,208.89 and 55,785.51

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Solution

The fourth proportional to 168,090.39, 252,208.89 and 55,785.51 is: 83,702.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,090.39 : 252,208.89 = 55,785.51 : x
  2. Step 2: Convert to fraction form
    168,090.39/252,208.89 = 55,785.51/x
  3. Step 3: Cross multiply
    168,090.39x = 252,208.89 × 55,785.51
  4. Step 4: Simplify right side
    168,090.39x = 14,069,601,555.18
  5. Step 5: Solve for x
    x = 14,069,601,555.18/168,090.39
  6. Step 6: Final answer
    x = 83,702.59

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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.