Home / 144,897.24-199,967.78-81,239.16

Finding the Fourth Proportional to 144,897.24, 199,967.78 and 81,239.16

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Solution

The fourth proportional to 144,897.24, 199,967.78 and 81,239.16 is: 112,115.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,897.24 : 199,967.78 = 81,239.16 : x
  2. Step 2: Convert to fraction form
    144,897.24/199,967.78 = 81,239.16/x
  3. Step 3: Cross multiply
    144,897.24x = 199,967.78 × 81,239.16
  4. Step 4: Simplify right side
    144,897.24x = 16,245,214,474.26
  5. Step 5: Solve for x
    x = 16,245,214,474.26/144,897.24
  6. Step 6: Final answer
    x = 112,115.42

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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.