Home / 276,280.20-414,420.47-86,739.74

Finding the Fourth Proportional to 276,280.20, 414,420.47 and 86,739.74

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Solution

The fourth proportional to 276,280.20, 414,420.47 and 86,739.74 is: 130,109.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,280.20 : 414,420.47 = 86,739.74 : x
  2. Step 2: Convert to fraction form
    276,280.20/414,420.47 = 86,739.74/x
  3. Step 3: Cross multiply
    276,280.20x = 414,420.47 × 86,739.74
  4. Step 4: Simplify right side
    276,280.20x = 35,946,721,312.68
  5. Step 5: Solve for x
    x = 35,946,721,312.68/276,280.20
  6. Step 6: Final answer
    x = 130,109.65

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1.5x scale

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.