Home / 179,970.21-248,360.76-99,399.78

Finding the Fourth Proportional to 179,970.21, 248,360.76 and 99,399.78

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Solution

The fourth proportional to 179,970.21, 248,360.76 and 99,399.78 is: 137,172.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,970.21 : 248,360.76 = 99,399.78 : x
  2. Step 2: Convert to fraction form
    179,970.21/248,360.76 = 99,399.78/x
  3. Step 3: Cross multiply
    179,970.21x = 248,360.76 × 99,399.78
  4. Step 4: Simplify right side
    179,970.21x = 24,687,004,904.63
  5. Step 5: Solve for x
    x = 24,687,004,904.63/179,970.21
  6. Step 6: Final answer
    x = 137,172.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.