Home / 111,665.02-154,028.60-73,428.96

Finding the Fourth Proportional to 111,665.02, 154,028.60 and 73,428.96

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Solution

The fourth proportional to 111,665.02, 154,028.60 and 73,428.96 is: 101,286.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,665.02 : 154,028.60 = 73,428.96 : x
  2. Step 2: Convert to fraction form
    111,665.02/154,028.60 = 73,428.96/x
  3. Step 3: Cross multiply
    111,665.02x = 154,028.60 × 73,428.96
  4. Step 4: Simplify right side
    111,665.02x = 11,310,159,908.26
  5. Step 5: Solve for x
    x = 11,310,159,908.26/111,665.02
  6. Step 6: Final answer
    x = 101,286.51

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1.5x scale

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.