Home / 143,387.60-197,873.69-79,724.84

Finding the Fourth Proportional to 143,387.60, 197,873.69 and 79,724.84

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Solution

The fourth proportional to 143,387.60, 197,873.69 and 79,724.84 is: 110,019.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,387.60 : 197,873.69 = 79,724.84 : x
  2. Step 2: Convert to fraction form
    143,387.60/197,873.69 = 79,724.84/x
  3. Step 3: Cross multiply
    143,387.60x = 197,873.69 × 79,724.84
  4. Step 4: Simplify right side
    143,387.60x = 15,775,449,316.45
  5. Step 5: Solve for x
    x = 15,775,449,316.45/143,387.60
  6. Step 6: Final answer
    x = 110,019.62

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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.