Home / 286,772.18-429,906.75-109,161.05

Finding the Fourth Proportional to 286,772.18, 429,906.75 and 109,161.05

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Solution

The fourth proportional to 286,772.18, 429,906.75 and 109,161.05 is: 163,645.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,772.18 : 429,906.75 = 109,161.05 : x
  2. Step 2: Convert to fraction form
    286,772.18/429,906.75 = 109,161.05/x
  3. Step 3: Cross multiply
    286,772.18x = 429,906.75 × 109,161.05
  4. Step 4: Simplify right side
    286,772.18x = 46,929,070,082.55
  5. Step 5: Solve for x
    x = 46,929,070,082.55/286,772.18
  6. Step 6: Final answer
    x = 163,645.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.