Home / 165,604.68-228,534.12-90,153.72

Finding the Fourth Proportional to 165,604.68, 228,534.12 and 90,153.72

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Solution

The fourth proportional to 165,604.68, 228,534.12 and 90,153.72 is: 124,411.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,604.68 : 228,534.12 = 90,153.72 : x
  2. Step 2: Convert to fraction form
    165,604.68/228,534.12 = 90,153.72/x
  3. Step 3: Cross multiply
    165,604.68x = 228,534.12 × 90,153.72
  4. Step 4: Simplify right side
    165,604.68x = 20,603,201,064.93
  5. Step 5: Solve for x
    x = 20,603,201,064.93/165,604.68
  6. Step 6: Final answer
    x = 124,411.95

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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.