Home / 134,788.80-202,226.40-90,465.60

Finding the Fourth Proportional to 134,788.80, 202,226.40 and 90,465.60

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Solution

The fourth proportional to 134,788.80, 202,226.40 and 90,465.60 is: 135,727.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,788.80 : 202,226.40 = 90,465.60 : x
  2. Step 2: Convert to fraction form
    134,788.80/202,226.40 = 90,465.60/x
  3. Step 3: Cross multiply
    134,788.80x = 202,226.40 × 90,465.60
  4. Step 4: Simplify right side
    134,788.80x = 18,294,532,611.84
  5. Step 5: Solve for x
    x = 18,294,532,611.84/134,788.80
  6. Step 6: Final answer
    x = 135,727.39

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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.