Home / 281,212.60-421,855.90-103,844.20

Finding the Fourth Proportional to 281,212.60, 421,855.90 and 103,844.20

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Solution

The fourth proportional to 281,212.60, 421,855.90 and 103,844.20 is: 155,779.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,212.60 : 421,855.90 = 103,844.20 : x
  2. Step 2: Convert to fraction form
    281,212.60/421,855.90 = 103,844.20/x
  3. Step 3: Cross multiply
    281,212.60x = 421,855.90 × 103,844.20
  4. Step 4: Simplify right side
    281,212.60x = 43,807,288,450.78
  5. Step 5: Solve for x
    x = 43,807,288,450.78/281,212.60
  6. Step 6: Final answer
    x = 155,779.96

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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.