Home / 143,525.77-198,120.68-107,819.35

Finding the Fourth Proportional to 143,525.77, 198,120.68 and 107,819.35

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Solution

The fourth proportional to 143,525.77, 198,120.68 and 107,819.35 is: 148,832.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,525.77 : 198,120.68 = 107,819.35 : x
  2. Step 2: Convert to fraction form
    143,525.77/198,120.68 = 107,819.35/x
  3. Step 3: Cross multiply
    143,525.77x = 198,120.68 × 107,819.35
  4. Step 4: Simplify right side
    143,525.77x = 21,361,242,400.06
  5. Step 5: Solve for x
    x = 21,361,242,400.06/143,525.77
  6. Step 6: Final answer
    x = 148,832.10

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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.