Home / 118,714.20-178,085.38-74,344.64

Finding the Fourth Proportional to 118,714.20, 178,085.38 and 74,344.64

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Solution

The fourth proportional to 118,714.20, 178,085.38 and 74,344.64 is: 111,525.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,714.20 : 178,085.38 = 74,344.64 : x
  2. Step 2: Convert to fraction form
    118,714.20/178,085.38 = 74,344.64/x
  3. Step 3: Cross multiply
    118,714.20x = 178,085.38 × 74,344.64
  4. Step 4: Simplify right side
    118,714.20x = 13,239,693,465.36
  5. Step 5: Solve for x
    x = 13,239,693,465.36/118,714.20
  6. Step 6: Final answer
    x = 111,525.78

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1.5x scale

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.