Home / 260,125.75-390,009.34-102,372.31

Finding the Fourth Proportional to 260,125.75, 390,009.34 and 102,372.31

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Solution

The fourth proportional to 260,125.75, 390,009.34 and 102,372.31 is: 153,487.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,125.75 : 390,009.34 = 102,372.31 : x
  2. Step 2: Convert to fraction form
    260,125.75/390,009.34 = 102,372.31/x
  3. Step 3: Cross multiply
    260,125.75x = 390,009.34 × 102,372.31
  4. Step 4: Simplify right side
    260,125.75x = 39,926,157,057.38
  5. Step 5: Solve for x
    x = 39,926,157,057.38/260,125.75
  6. Step 6: Final answer
    x = 153,487.91

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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.