Home / 143,976.16-198,557.58-90,266.68

Finding the Fourth Proportional to 143,976.16, 198,557.58 and 90,266.68

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Solution

The fourth proportional to 143,976.16, 198,557.58 and 90,266.68 is: 124,486.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,976.16 : 198,557.58 = 90,266.68 : x
  2. Step 2: Convert to fraction form
    143,976.16/198,557.58 = 90,266.68/x
  3. Step 3: Cross multiply
    143,976.16x = 198,557.58 × 90,266.68
  4. Step 4: Simplify right side
    143,976.16x = 17,923,133,535.43
  5. Step 5: Solve for x
    x = 17,923,133,535.43/143,976.16
  6. Step 6: Final answer
    x = 124,486.81

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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.