Home / 223,783.56-308,827.77-121,815.63

Finding the Fourth Proportional to 223,783.56, 308,827.77 and 121,815.63

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Solution

The fourth proportional to 223,783.56, 308,827.77 and 121,815.63 is: 168,109.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,783.56 : 308,827.77 = 121,815.63 : x
  2. Step 2: Convert to fraction form
    223,783.56/308,827.77 = 121,815.63/x
  3. Step 3: Cross multiply
    223,783.56x = 308,827.77 × 121,815.63
  4. Step 4: Simplify right side
    223,783.56x = 37,620,049,364.05
  5. Step 5: Solve for x
    x = 37,620,049,364.05/223,783.56
  6. Step 6: Final answer
    x = 168,109.08

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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.