Home / 143,842.37-198,421.18-90,033.96

Finding the Fourth Proportional to 143,842.37, 198,421.18 and 90,033.96

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Solution

The fourth proportional to 143,842.37, 198,421.18 and 90,033.96 is: 124,195.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,842.37 : 198,421.18 = 90,033.96 : x
  2. Step 2: Convert to fraction form
    143,842.37/198,421.18 = 90,033.96/x
  3. Step 3: Cross multiply
    143,842.37x = 198,421.18 × 90,033.96
  4. Step 4: Simplify right side
    143,842.37x = 17,864,645,102.27
  5. Step 5: Solve for x
    x = 17,864,645,102.27/143,842.37
  6. Step 6: Final answer
    x = 124,195.99

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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.