Home / 199,478.04-298,958.54-81,011.76

Finding the Fourth Proportional to 199,478.04, 298,958.54 and 81,011.76

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Solution

The fourth proportional to 199,478.04, 298,958.54 and 81,011.76 is: 121,412.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,478.04 : 298,958.54 = 81,011.76 : x
  2. Step 2: Convert to fraction form
    199,478.04/298,958.54 = 81,011.76/x
  3. Step 3: Cross multiply
    199,478.04x = 298,958.54 × 81,011.76
  4. Step 4: Simplify right side
    199,478.04x = 24,219,157,087.37
  5. Step 5: Solve for x
    x = 24,219,157,087.37/199,478.04
  6. Step 6: Final answer
    x = 121,412.65

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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.