Home / 147,905.64-204,109.77-80,837.64

Finding the Fourth Proportional to 147,905.64, 204,109.77 and 80,837.64

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Solution

The fourth proportional to 147,905.64, 204,109.77 and 80,837.64 is: 111,555.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,905.64 : 204,109.77 = 80,837.64 : x
  2. Step 2: Convert to fraction form
    147,905.64/204,109.77 = 80,837.64/x
  3. Step 3: Cross multiply
    147,905.64x = 204,109.77 × 80,837.64
  4. Step 4: Simplify right side
    147,905.64x = 16,499,752,107.74
  5. Step 5: Solve for x
    x = 16,499,752,107.74/147,905.64
  6. Step 6: Final answer
    x = 111,555.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.