Home / 120,269.51-165,862.27-103,268.42

Finding the Fourth Proportional to 120,269.51, 165,862.27 and 103,268.42

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Solution

The fourth proportional to 120,269.51, 165,862.27 and 103,268.42 is: 142,416.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,269.51 : 165,862.27 = 103,268.42 : x
  2. Step 2: Convert to fraction form
    120,269.51/165,862.27 = 103,268.42/x
  3. Step 3: Cross multiply
    120,269.51x = 165,862.27 × 103,268.42
  4. Step 4: Simplify right side
    120,269.51x = 17,128,334,560.51
  5. Step 5: Solve for x
    x = 17,128,334,560.51/120,269.51
  6. Step 6: Final answer
    x = 142,416.27

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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.