Home / 165,931.93-228,986.22-90,480.43

Finding the Fourth Proportional to 165,931.93, 228,986.22 and 90,480.43

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Solution

The fourth proportional to 165,931.93, 228,986.22 and 90,480.43 is: 124,863.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,931.93 : 228,986.22 = 90,480.43 : x
  2. Step 2: Convert to fraction form
    165,931.93/228,986.22 = 90,480.43/x
  3. Step 3: Cross multiply
    165,931.93x = 228,986.22 × 90,480.43
  4. Step 4: Simplify right side
    165,931.93x = 20,718,771,649.67
  5. Step 5: Solve for x
    x = 20,718,771,649.67/165,931.93
  6. Step 6: Final answer
    x = 124,863.08

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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.