Home / 144,021.69-198,694.49-90,213.03

Finding the Fourth Proportional to 144,021.69, 198,694.49 and 90,213.03

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Solution

The fourth proportional to 144,021.69, 198,694.49 and 90,213.03 is: 124,459.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,021.69 : 198,694.49 = 90,213.03 : x
  2. Step 2: Convert to fraction form
    144,021.69/198,694.49 = 90,213.03/x
  3. Step 3: Cross multiply
    144,021.69x = 198,694.49 × 90,213.03
  4. Step 4: Simplify right side
    144,021.69x = 17,924,831,987.20
  5. Step 5: Solve for x
    x = 17,924,831,987.20/144,021.69
  6. Step 6: Final answer
    x = 124,459.25

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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.