Home / 260,103.67-390,181.49-70,567.16

Finding the Fourth Proportional to 260,103.67, 390,181.49 and 70,567.16

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Solution

The fourth proportional to 260,103.67, 390,181.49 and 70,567.16 is: 105,857.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,103.67 : 390,181.49 = 70,567.16 : x
  2. Step 2: Convert to fraction form
    260,103.67/390,181.49 = 70,567.16/x
  3. Step 3: Cross multiply
    260,103.67x = 390,181.49 × 70,567.16
  4. Step 4: Simplify right side
    260,103.67x = 27,533,999,633.87
  5. Step 5: Solve for x
    x = 27,533,999,633.87/260,103.67
  6. Step 6: Final answer
    x = 105,857.79

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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.