Home / 276,070.20-414,118.68-76,386.18

Finding the Fourth Proportional to 276,070.20, 414,118.68 and 76,386.18

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Solution

The fourth proportional to 276,070.20, 414,118.68 and 76,386.18 is: 114,582.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,070.20 : 414,118.68 = 76,386.18 : x
  2. Step 2: Convert to fraction form
    276,070.20/414,118.68 = 76,386.18/x
  3. Step 3: Cross multiply
    276,070.20x = 414,118.68 × 76,386.18
  4. Step 4: Simplify right side
    276,070.20x = 31,632,944,031.84
  5. Step 5: Solve for x
    x = 31,632,944,031.84/276,070.20
  6. Step 6: Final answer
    x = 114,582.97

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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.