Home / 165,619.04-228,554.80-90,168

Finding the Fourth Proportional to 165,619.04, 228,554.80 and 90,168

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Solution

The fourth proportional to 165,619.04, 228,554.80 and 90,168 is: 124,432.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,619.04 : 228,554.80 = 90,168 : x
  2. Step 2: Convert to fraction form
    165,619.04/228,554.80 = 90,168/x
  3. Step 3: Cross multiply
    165,619.04x = 228,554.80 × 90,168
  4. Step 4: Simplify right side
    165,619.04x = 20,608,329,206.40
  5. Step 5: Solve for x
    x = 20,608,329,206.40/165,619.04
  6. Step 6: Final answer
    x = 124,432.13

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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.