Home / 260,153.85-390,230.82-73,165.35

Finding the Fourth Proportional to 260,153.85, 390,230.82 and 73,165.35

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Solution

The fourth proportional to 260,153.85, 390,230.82 and 73,165.35 is: 109,748.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,153.85 : 390,230.82 = 73,165.35 : x
  2. Step 2: Convert to fraction form
    260,153.85/390,230.82 = 73,165.35/x
  3. Step 3: Cross multiply
    260,153.85x = 390,230.82 × 73,165.35
  4. Step 4: Simplify right side
    260,153.85x = 28,551,374,526.09
  5. Step 5: Solve for x
    x = 28,551,374,526.09/260,153.85
  6. Step 6: Final answer
    x = 109,748.04

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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.