Home / 144,022.44-198,695.53-90,213.78

Finding the Fourth Proportional to 144,022.44, 198,695.53 and 90,213.78

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Solution

The fourth proportional to 144,022.44, 198,695.53 and 90,213.78 is: 124,460.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,022.44 : 198,695.53 = 90,213.78 : x
  2. Step 2: Convert to fraction form
    144,022.44/198,695.53 = 90,213.78/x
  3. Step 3: Cross multiply
    144,022.44x = 198,695.53 × 90,213.78
  4. Step 4: Simplify right side
    144,022.44x = 17,925,074,830.40
  5. Step 5: Solve for x
    x = 17,925,074,830.40/144,022.44
  6. Step 6: Final answer
    x = 124,460.29

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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.