Home / 104,268.51-156,424.64-45,112.59

Finding the Fourth Proportional to 104,268.51, 156,424.64 and 45,112.59

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Solution

The fourth proportional to 104,268.51, 156,424.64 and 45,112.59 is: 67,678.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,268.51 : 156,424.64 = 45,112.59 : x
  2. Step 2: Convert to fraction form
    104,268.51/156,424.64 = 45,112.59/x
  3. Step 3: Cross multiply
    104,268.51x = 156,424.64 × 45,112.59
  4. Step 4: Simplify right side
    104,268.51x = 7,056,720,424.65
  5. Step 5: Solve for x
    x = 7,056,720,424.65/104,268.51
  6. Step 6: Final answer
    x = 67,678.35

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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.