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Finding the Fourth Proportional to 101,556.59, 140,415.62 and 88,945.19

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Solution

The fourth proportional to 101,556.59, 140,415.62 and 88,945.19 is: 122,978.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,556.59 : 140,415.62 = 88,945.19 : x
  2. Step 2: Convert to fraction form
    101,556.59/140,415.62 = 88,945.19/x
  3. Step 3: Cross multiply
    101,556.59x = 140,415.62 × 88,945.19
  4. Step 4: Simplify right side
    101,556.59x = 12,489,293,537.65
  5. Step 5: Solve for x
    x = 12,489,293,537.65/101,556.59
  6. Step 6: Final answer
    x = 122,978.66

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1.5x scale

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.