Home / 223,513.60-308,444.38-121,538.20

Finding the Fourth Proportional to 223,513.60, 308,444.38 and 121,538.20

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Solution

The fourth proportional to 223,513.60, 308,444.38 and 121,538.20 is: 167,720.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,513.60 : 308,444.38 = 121,538.20 : x
  2. Step 2: Convert to fraction form
    223,513.60/308,444.38 = 121,538.20/x
  3. Step 3: Cross multiply
    223,513.60x = 308,444.38 × 121,538.20
  4. Step 4: Simplify right side
    223,513.60x = 37,487,774,745.32
  5. Step 5: Solve for x
    x = 37,487,774,745.32/223,513.60
  6. Step 6: Final answer
    x = 167,720.33

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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.