Home / 165,289.04-228,100.38-89,837.72

Finding the Fourth Proportional to 165,289.04, 228,100.38 and 89,837.72

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Solution

The fourth proportional to 165,289.04, 228,100.38 and 89,837.72 is: 123,976.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,289.04 : 228,100.38 = 89,837.72 : x
  2. Step 2: Convert to fraction form
    165,289.04/228,100.38 = 89,837.72/x
  3. Step 3: Cross multiply
    165,289.04x = 228,100.38 × 89,837.72
  4. Step 4: Simplify right side
    165,289.04x = 20,492,018,070.33
  5. Step 5: Solve for x
    x = 20,492,018,070.33/165,289.04
  6. Step 6: Final answer
    x = 123,976.87

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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.