Home / 149,268.29-205,923.60-100,854.59

Finding the Fourth Proportional to 149,268.29, 205,923.60 and 100,854.59

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Solution

The fourth proportional to 149,268.29, 205,923.60 and 100,854.59 is: 139,134.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,268.29 : 205,923.60 = 100,854.59 : x
  2. Step 2: Convert to fraction form
    149,268.29/205,923.60 = 100,854.59/x
  3. Step 3: Cross multiply
    149,268.29x = 205,923.60 × 100,854.59
  4. Step 4: Simplify right side
    149,268.29x = 20,768,339,219.71
  5. Step 5: Solve for x
    x = 20,768,339,219.71/149,268.29
  6. Step 6: Final answer
    x = 139,134.31

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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.