Home / 133,051.10-199,633.35-69,919.70

Finding the Fourth Proportional to 133,051.10, 199,633.35 and 69,919.70

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Solution

The fourth proportional to 133,051.10, 199,633.35 and 69,919.70 is: 104,909.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,051.10 : 199,633.35 = 69,919.70 : x
  2. Step 2: Convert to fraction form
    133,051.10/199,633.35 = 69,919.70/x
  3. Step 3: Cross multiply
    133,051.10x = 199,633.35 × 69,919.70
  4. Step 4: Simplify right side
    133,051.10x = 13,958,303,942.00
  5. Step 5: Solve for x
    x = 13,958,303,942.00/133,051.10
  6. Step 6: Final answer
    x = 104,909.35

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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.