Home / 106,268.95-159,429.55-31,388.70

Finding the Fourth Proportional to 106,268.95, 159,429.55 and 31,388.70

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Solution

The fourth proportional to 106,268.95, 159,429.55 and 31,388.70 is: 47,090.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,268.95 : 159,429.55 = 31,388.70 : x
  2. Step 2: Convert to fraction form
    106,268.95/159,429.55 = 31,388.70/x
  3. Step 3: Cross multiply
    106,268.95x = 159,429.55 × 31,388.70
  4. Step 4: Simplify right side
    106,268.95x = 5,004,286,316.09
  5. Step 5: Solve for x
    x = 5,004,286,316.09/106,268.95
  6. Step 6: Final answer
    x = 47,090.77

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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.