Home / 165,919.40-248,879.10-55,111.40

Finding the Fourth Proportional to 165,919.40, 248,879.10 and 55,111.40

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Solution

The fourth proportional to 165,919.40, 248,879.10 and 55,111.40 is: 82,667.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,919.40 : 248,879.10 = 55,111.40 : x
  2. Step 2: Convert to fraction form
    165,919.40/248,879.10 = 55,111.40/x
  3. Step 3: Cross multiply
    165,919.40x = 248,879.10 × 55,111.40
  4. Step 4: Simplify right side
    165,919.40x = 13,716,075,631.74
  5. Step 5: Solve for x
    x = 13,716,075,631.74/165,919.40
  6. Step 6: Final answer
    x = 82,667.10

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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.