Home / 154,447.70-213,135.10-85,535.73

Finding the Fourth Proportional to 154,447.70, 213,135.10 and 85,535.73

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Solution

The fourth proportional to 154,447.70, 213,135.10 and 85,535.73 is: 118,037.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,447.70 : 213,135.10 = 85,535.73 : x
  2. Step 2: Convert to fraction form
    154,447.70/213,135.10 = 85,535.73/x
  3. Step 3: Cross multiply
    154,447.70x = 213,135.10 × 85,535.73
  4. Step 4: Simplify right side
    154,447.70x = 18,230,666,367.12
  5. Step 5: Solve for x
    x = 18,230,666,367.12/154,447.70
  6. Step 6: Final answer
    x = 118,037.80

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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.