Home / 144,169.84-198,901.60-90,435.25

Finding the Fourth Proportional to 144,169.84, 198,901.60 and 90,435.25

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Solution

The fourth proportional to 144,169.84, 198,901.60 and 90,435.25 is: 124,767.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,169.84 : 198,901.60 = 90,435.25 : x
  2. Step 2: Convert to fraction form
    144,169.84/198,901.60 = 90,435.25/x
  3. Step 3: Cross multiply
    144,169.84x = 198,901.60 × 90,435.25
  4. Step 4: Simplify right side
    144,169.84x = 17,987,715,921.40
  5. Step 5: Solve for x
    x = 17,987,715,921.40/144,169.84
  6. Step 6: Final answer
    x = 124,767.54

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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.