Home / 144,784.23-199,802.10-81,122.48

Finding the Fourth Proportional to 144,784.23, 199,802.10 and 81,122.48

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Solution

The fourth proportional to 144,784.23, 199,802.10 and 81,122.48 is: 111,948.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,784.23 : 199,802.10 = 81,122.48 : x
  2. Step 2: Convert to fraction form
    144,784.23/199,802.10 = 81,122.48/x
  3. Step 3: Cross multiply
    144,784.23x = 199,802.10 × 81,122.48
  4. Step 4: Simplify right side
    144,784.23x = 16,208,442,664.92
  5. Step 5: Solve for x
    x = 16,208,442,664.92/144,784.23
  6. Step 6: Final answer
    x = 111,948.95

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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.