Home / 199,749.79-299,688.50-71,579.52

Finding the Fourth Proportional to 199,749.79, 299,688.50 and 71,579.52

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Solution

The fourth proportional to 199,749.79, 299,688.50 and 71,579.52 is: 107,392.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,749.79 : 299,688.50 = 71,579.52 : x
  2. Step 2: Convert to fraction form
    199,749.79/299,688.50 = 71,579.52/x
  3. Step 3: Cross multiply
    199,749.79x = 299,688.50 × 71,579.52
  4. Step 4: Simplify right side
    199,749.79x = 21,451,558,621.62
  5. Step 5: Solve for x
    x = 21,451,558,621.62/199,749.79
  6. Step 6: Final answer
    x = 107,392.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.