Home / 143,410.16-197,910.86-78,882.14

Finding the Fourth Proportional to 143,410.16, 197,910.86 and 78,882.14

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Solution

The fourth proportional to 143,410.16, 197,910.86 and 78,882.14 is: 108,860.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,410.16 : 197,910.86 = 78,882.14 : x
  2. Step 2: Convert to fraction form
    143,410.16/197,910.86 = 78,882.14/x
  3. Step 3: Cross multiply
    143,410.16x = 197,910.86 × 78,882.14
  4. Step 4: Simplify right side
    143,410.16x = 15,611,630,782.08
  5. Step 5: Solve for x
    x = 15,611,630,782.08/143,410.16
  6. Step 6: Final answer
    x = 108,860.01

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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.