Home / 260,643.42-390,997.33-92,129.00

Finding the Fourth Proportional to 260,643.42, 390,997.33 and 92,129.00

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Solution

The fourth proportional to 260,643.42, 390,997.33 and 92,129.00 is: 138,204.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,643.42 : 390,997.33 = 92,129.00 : x
  2. Step 2: Convert to fraction form
    260,643.42/390,997.33 = 92,129.00/x
  3. Step 3: Cross multiply
    260,643.42x = 390,997.33 × 92,129.00
  4. Step 4: Simplify right side
    260,643.42x = 36,022,190,830.26
  5. Step 5: Solve for x
    x = 36,022,190,830.26/260,643.42
  6. Step 6: Final answer
    x = 138,204.87

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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.