Home / 257,162.47-385,556.87-107,445.58

Finding the Fourth Proportional to 257,162.47, 385,556.87 and 107,445.58

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Solution

The fourth proportional to 257,162.47, 385,556.87 and 107,445.58 is: 161,090.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,162.47 : 385,556.87 = 107,445.58 : x
  2. Step 2: Convert to fraction form
    257,162.47/385,556.87 = 107,445.58/x
  3. Step 3: Cross multiply
    257,162.47x = 385,556.87 × 107,445.58
  4. Step 4: Simplify right side
    257,162.47x = 41,426,381,520.13
  5. Step 5: Solve for x
    x = 41,426,381,520.13/257,162.47
  6. Step 6: Final answer
    x = 161,090.31

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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.