Home / 166,285.47-229,465.40-90,819.39

Finding the Fourth Proportional to 166,285.47, 229,465.40 and 90,819.39

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Solution

The fourth proportional to 166,285.47, 229,465.40 and 90,819.39 is: 125,326.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,285.47 : 229,465.40 = 90,819.39 : x
  2. Step 2: Convert to fraction form
    166,285.47/229,465.40 = 90,819.39/x
  3. Step 3: Cross multiply
    166,285.47x = 229,465.40 × 90,819.39
  4. Step 4: Simplify right side
    166,285.47x = 20,839,907,200.01
  5. Step 5: Solve for x
    x = 20,839,907,200.01/166,285.47
  6. Step 6: Final answer
    x = 125,326.09

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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.