Home / 260,156.85-390,235.32-73,168.35

Finding the Fourth Proportional to 260,156.85, 390,235.32 and 73,168.35

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Solution

The fourth proportional to 260,156.85, 390,235.32 and 73,168.35 is: 109,752.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,156.85 : 390,235.32 = 73,168.35 : x
  2. Step 2: Convert to fraction form
    260,156.85/390,235.32 = 73,168.35/x
  3. Step 3: Cross multiply
    260,156.85x = 390,235.32 × 73,168.35
  4. Step 4: Simplify right side
    260,156.85x = 28,552,874,476.12
  5. Step 5: Solve for x
    x = 28,552,874,476.12/260,156.85
  6. Step 6: Final answer
    x = 109,752.54

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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.