Home / 260,103.48-390,155.22-73,114.98

Finding the Fourth Proportional to 260,103.48, 390,155.22 and 73,114.98

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Solution

The fourth proportional to 260,103.48, 390,155.22 and 73,114.98 is: 109,672.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,103.48 : 390,155.22 = 73,114.98 : x
  2. Step 2: Convert to fraction form
    260,103.48/390,155.22 = 73,114.98/x
  3. Step 3: Cross multiply
    260,103.48x = 390,155.22 × 73,114.98
  4. Step 4: Simplify right side
    260,103.48x = 28,526,191,107.20
  5. Step 5: Solve for x
    x = 28,526,191,107.20/260,103.48
  6. Step 6: Final answer
    x = 109,672.47

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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.