Home / 178,986.45-268,437.29-66,719.37

Finding the Fourth Proportional to 178,986.45, 268,437.29 and 66,719.37

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Solution

The fourth proportional to 178,986.45, 268,437.29 and 66,719.37 is: 100,063.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,986.45 : 268,437.29 = 66,719.37 : x
  2. Step 2: Convert to fraction form
    178,986.45/268,437.29 = 66,719.37/x
  3. Step 3: Cross multiply
    178,986.45x = 268,437.29 × 66,719.37
  4. Step 4: Simplify right side
    178,986.45x = 17,909,966,539.71
  5. Step 5: Solve for x
    x = 17,909,966,539.71/178,986.45
  6. Step 6: Final answer
    x = 100,063.25

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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.