Home / 165,664.32-228,617.12-90,211.20

Finding the Fourth Proportional to 165,664.32, 228,617.12 and 90,211.20

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Solution

The fourth proportional to 165,664.32, 228,617.12 and 90,211.20 is: 124,491.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,664.32 : 228,617.12 = 90,211.20 : x
  2. Step 2: Convert to fraction form
    165,664.32/228,617.12 = 90,211.20/x
  3. Step 3: Cross multiply
    165,664.32x = 228,617.12 × 90,211.20
  4. Step 4: Simplify right side
    165,664.32x = 20,623,824,735.74
  5. Step 5: Solve for x
    x = 20,623,824,735.74/165,664.32
  6. Step 6: Final answer
    x = 124,491.65

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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.