Home / 118,939.68-178,409.58-40,047.30

Finding the Fourth Proportional to 118,939.68, 178,409.58 and 40,047.30

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Solution

The fourth proportional to 118,939.68, 178,409.58 and 40,047.30 is: 60,070.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,939.68 : 178,409.58 = 40,047.30 : x
  2. Step 2: Convert to fraction form
    118,939.68/178,409.58 = 40,047.30/x
  3. Step 3: Cross multiply
    118,939.68x = 178,409.58 × 40,047.30
  4. Step 4: Simplify right side
    118,939.68x = 7,144,821,973.13
  5. Step 5: Solve for x
    x = 7,144,821,973.13/118,939.68
  6. Step 6: Final answer
    x = 60,070.97

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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.