Home / 144,017.69-198,688.97-90,209.03

Finding the Fourth Proportional to 144,017.69, 198,688.97 and 90,209.03

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Solution

The fourth proportional to 144,017.69, 198,688.97 and 90,209.03 is: 124,453.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,017.69 : 198,688.97 = 90,209.03 : x
  2. Step 2: Convert to fraction form
    144,017.69/198,688.97 = 90,209.03/x
  3. Step 3: Cross multiply
    144,017.69x = 198,688.97 × 90,209.03
  4. Step 4: Simplify right side
    144,017.69x = 17,923,538,487.48
  5. Step 5: Solve for x
    x = 17,923,538,487.48/144,017.69
  6. Step 6: Final answer
    x = 124,453.73

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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.