Home / 144,007.60-198,678-89,556.16

Finding the Fourth Proportional to 144,007.60, 198,678 and 89,556.16

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Solution

The fourth proportional to 144,007.60, 198,678 and 89,556.16 is: 123,554.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,007.60 : 198,678 = 89,556.16 : x
  2. Step 2: Convert to fraction form
    144,007.60/198,678 = 89,556.16/x
  3. Step 3: Cross multiply
    144,007.60x = 198,678 × 89,556.16
  4. Step 4: Simplify right side
    144,007.60x = 17,792,838,756.48
  5. Step 5: Solve for x
    x = 17,792,838,756.48/144,007.60
  6. Step 6: Final answer
    x = 123,554.86

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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.