Home / 144,083.37-198,835.29-80,421.15

Finding the Fourth Proportional to 144,083.37, 198,835.29 and 80,421.15

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Solution

The fourth proportional to 144,083.37, 198,835.29 and 80,421.15 is: 110,981.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,083.37 : 198,835.29 = 80,421.15 : x
  2. Step 2: Convert to fraction form
    144,083.37/198,835.29 = 80,421.15/x
  3. Step 3: Cross multiply
    144,083.37x = 198,835.29 × 80,421.15
  4. Step 4: Simplify right side
    144,083.37x = 15,990,562,682.38
  5. Step 5: Solve for x
    x = 15,990,562,682.38/144,083.37
  6. Step 6: Final answer
    x = 110,981.32

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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.