Home / 343,655.03-515,556.69-103,749.02

Finding the Fourth Proportional to 343,655.03, 515,556.69 and 103,749.02

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Solution

The fourth proportional to 343,655.03, 515,556.69 and 103,749.02 is: 155,645.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,655.03 : 515,556.69 = 103,749.02 : x
  2. Step 2: Convert to fraction form
    343,655.03/515,556.69 = 103,749.02/x
  3. Step 3: Cross multiply
    343,655.03x = 515,556.69 × 103,749.02
  4. Step 4: Simplify right side
    343,655.03x = 53,488,503,534.65
  5. Step 5: Solve for x
    x = 53,488,503,534.65/343,655.03
  6. Step 6: Final answer
    x = 155,645.92

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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.