Home / 122,229.05-168,499.49-85,819.64

Finding the Fourth Proportional to 122,229.05, 168,499.49 and 85,819.64

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Solution

The fourth proportional to 122,229.05, 168,499.49 and 85,819.64 is: 118,307.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,229.05 : 168,499.49 = 85,819.64 : x
  2. Step 2: Convert to fraction form
    122,229.05/168,499.49 = 85,819.64/x
  3. Step 3: Cross multiply
    122,229.05x = 168,499.49 × 85,819.64
  4. Step 4: Simplify right side
    122,229.05x = 14,460,564,300.39
  5. Step 5: Solve for x
    x = 14,460,564,300.39/122,229.05
  6. Step 6: Final answer
    x = 118,307.10

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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.