Home / 118,970.37-178,476.21-40,085.28

Finding the Fourth Proportional to 118,970.37, 178,476.21 and 40,085.28

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Solution

The fourth proportional to 118,970.37, 178,476.21 and 40,085.28 is: 60,134.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,970.37 : 178,476.21 = 40,085.28 : x
  2. Step 2: Convert to fraction form
    118,970.37/178,476.21 = 40,085.28/x
  3. Step 3: Cross multiply
    118,970.37x = 178,476.21 × 40,085.28
  4. Step 4: Simplify right side
    118,970.37x = 7,154,268,851.19
  5. Step 5: Solve for x
    x = 7,154,268,851.19/118,970.37
  6. Step 6: Final answer
    x = 60,134.88

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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.