Home / 211,485.98-317,214.18-99,190.82

Finding the Fourth Proportional to 211,485.98, 317,214.18 and 99,190.82

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Solution

The fourth proportional to 211,485.98, 317,214.18 and 99,190.82 is: 148,779.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,485.98 : 317,214.18 = 99,190.82 : x
  2. Step 2: Convert to fraction form
    211,485.98/317,214.18 = 99,190.82/x
  3. Step 3: Cross multiply
    211,485.98x = 317,214.18 × 99,190.82
  4. Step 4: Simplify right side
    211,485.98x = 31,464,734,629.83
  5. Step 5: Solve for x
    x = 31,464,734,629.83/211,485.98
  6. Step 6: Final answer
    x = 148,779.29

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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.