Home / 165,779.94-228,776.35-90,328.44

Finding the Fourth Proportional to 165,779.94, 228,776.35 and 90,328.44

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Solution

The fourth proportional to 165,779.94, 228,776.35 and 90,328.44 is: 124,653.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,779.94 : 228,776.35 = 90,328.44 : x
  2. Step 2: Convert to fraction form
    165,779.94/228,776.35 = 90,328.44/x
  3. Step 3: Cross multiply
    165,779.94x = 228,776.35 × 90,328.44
  4. Step 4: Simplify right side
    165,779.94x = 20,665,010,804.39
  5. Step 5: Solve for x
    x = 20,665,010,804.39/165,779.94
  6. Step 6: Final answer
    x = 124,653.27

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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.