Home / 260,088.26-390,145.91-82,609.16

Finding the Fourth Proportional to 260,088.26, 390,145.91 and 82,609.16

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Solution

The fourth proportional to 260,088.26, 390,145.91 and 82,609.16 is: 123,918.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,088.26 : 390,145.91 = 82,609.16 : x
  2. Step 2: Convert to fraction form
    260,088.26/390,145.91 = 82,609.16/x
  3. Step 3: Cross multiply
    260,088.26x = 390,145.91 × 82,609.16
  4. Step 4: Simplify right side
    260,088.26x = 32,229,623,538.76
  5. Step 5: Solve for x
    x = 32,229,623,538.76/260,088.26
  6. Step 6: Final answer
    x = 123,918.03

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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.