Home / 260,103.90-390,155.82-73,115.40

Finding the Fourth Proportional to 260,103.90, 390,155.82 and 73,115.40

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Solution

The fourth proportional to 260,103.90, 390,155.82 and 73,115.40 is: 109,673.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,103.90 : 390,155.82 = 73,115.40 : x
  2. Step 2: Convert to fraction form
    260,103.90/390,155.82 = 73,115.40/x
  3. Step 3: Cross multiply
    260,103.90x = 390,155.82 × 73,115.40
  4. Step 4: Simplify right side
    260,103.90x = 28,526,398,841.63
  5. Step 5: Solve for x
    x = 28,526,398,841.63/260,103.90
  6. Step 6: Final answer
    x = 109,673.09

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1.5x scale

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.