Home / 154,021.60-231,226.80-83,000.80

Finding the Fourth Proportional to 154,021.60, 231,226.80 and 83,000.80

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Solution

The fourth proportional to 154,021.60, 231,226.80 and 83,000.80 is: 124,605.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,021.60 : 231,226.80 = 83,000.80 : x
  2. Step 2: Convert to fraction form
    154,021.60/231,226.80 = 83,000.80/x
  3. Step 3: Cross multiply
    154,021.60x = 231,226.80 × 83,000.80
  4. Step 4: Simplify right side
    154,021.60x = 19,192,009,381.44
  5. Step 5: Solve for x
    x = 19,192,009,381.44/154,021.60
  6. Step 6: Final answer
    x = 124,605.96

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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.