Home / 165,490.28-228,377.58-90,039.32

Finding the Fourth Proportional to 165,490.28, 228,377.58 and 90,039.32

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Solution

The fourth proportional to 165,490.28, 228,377.58 and 90,039.32 is: 124,254.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,490.28 : 228,377.58 = 90,039.32 : x
  2. Step 2: Convert to fraction form
    165,490.28/228,377.58 = 90,039.32/x
  3. Step 3: Cross multiply
    165,490.28x = 228,377.58 × 90,039.32
  4. Step 4: Simplify right side
    165,490.28x = 20,562,962,006.45
  5. Step 5: Solve for x
    x = 20,562,962,006.45/165,490.28
  6. Step 6: Final answer
    x = 124,254.80

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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.