Home / 118,980.06-178,381.32-71,584.04

Finding the Fourth Proportional to 118,980.06, 178,381.32 and 71,584.04

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Solution

The fourth proportional to 118,980.06, 178,381.32 and 71,584.04 is: 107,322.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,980.06 : 178,381.32 = 71,584.04 : x
  2. Step 2: Convert to fraction form
    118,980.06/178,381.32 = 71,584.04/x
  3. Step 3: Cross multiply
    118,980.06x = 178,381.32 × 71,584.04
  4. Step 4: Simplify right side
    118,980.06x = 12,769,256,192.33
  5. Step 5: Solve for x
    x = 12,769,256,192.33/118,980.06
  6. Step 6: Final answer
    x = 107,322.66

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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.