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Finding the Fourth Proportional to 101,468.07, 152,021.54 and 86,525.39

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Solution

The fourth proportional to 101,468.07, 152,021.54 and 86,525.39 is: 129,634.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,468.07 : 152,021.54 = 86,525.39 : x
  2. Step 2: Convert to fraction form
    101,468.07/152,021.54 = 86,525.39/x
  3. Step 3: Cross multiply
    101,468.07x = 152,021.54 × 86,525.39
  4. Step 4: Simplify right side
    101,468.07x = 13,153,723,633.27
  5. Step 5: Solve for x
    x = 13,153,723,633.27/101,468.07
  6. Step 6: Final answer
    x = 129,634.12

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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.