Home / 223,789.56-308,837.74-121,810.08

Finding the Fourth Proportional to 223,789.56, 308,837.74 and 121,810.08

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Solution

The fourth proportional to 223,789.56, 308,837.74 and 121,810.08 is: 168,102.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,789.56 : 308,837.74 = 121,810.08 : x
  2. Step 2: Convert to fraction form
    223,789.56/308,837.74 = 121,810.08/x
  3. Step 3: Cross multiply
    223,789.56x = 308,837.74 × 121,810.08
  4. Step 4: Simplify right side
    223,789.56x = 37,619,549,816.42
  5. Step 5: Solve for x
    x = 37,619,549,816.42/223,789.56
  6. Step 6: Final answer
    x = 168,102.34

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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.