Home / 257,159.47-385,552.37-107,442.58

Finding the Fourth Proportional to 257,159.47, 385,552.37 and 107,442.58

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Solution

The fourth proportional to 257,159.47, 385,552.37 and 107,442.58 is: 161,085.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,159.47 : 385,552.37 = 107,442.58 : x
  2. Step 2: Convert to fraction form
    257,159.47/385,552.37 = 107,442.58/x
  3. Step 3: Cross multiply
    257,159.47x = 385,552.37 × 107,442.58
  4. Step 4: Simplify right side
    257,159.47x = 41,424,739,912.09
  5. Step 5: Solve for x
    x = 41,424,739,912.09/257,159.47
  6. Step 6: Final answer
    x = 161,085.80

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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.