Home / 260,086.02-390,142.50-82,606.92

Finding the Fourth Proportional to 260,086.02, 390,142.50 and 82,606.92

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Solution

The fourth proportional to 260,086.02, 390,142.50 and 82,606.92 is: 123,914.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,086.02 : 390,142.50 = 82,606.92 : x
  2. Step 2: Convert to fraction form
    260,086.02/390,142.50 = 82,606.92/x
  3. Step 3: Cross multiply
    260,086.02x = 390,142.50 × 82,606.92
  4. Step 4: Simplify right side
    260,086.02x = 32,228,470,286.10
  5. Step 5: Solve for x
    x = 32,228,470,286.10/260,086.02
  6. Step 6: Final answer
    x = 123,914.66

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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.