Home / 143,359.04-197,837.43-79,698.20

Finding the Fourth Proportional to 143,359.04, 197,837.43 and 79,698.20

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Solution

The fourth proportional to 143,359.04, 197,837.43 and 79,698.20 is: 109,984.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,359.04 : 197,837.43 = 79,698.20 : x
  2. Step 2: Convert to fraction form
    143,359.04/197,837.43 = 79,698.20/x
  3. Step 3: Cross multiply
    143,359.04x = 197,837.43 × 79,698.20
  4. Step 4: Simplify right side
    143,359.04x = 15,767,286,074.44
  5. Step 5: Solve for x
    x = 15,767,286,074.44/143,359.04
  6. Step 6: Final answer
    x = 109,984.60

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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.