Home / 223,309.40-308,168.11-121,335.12

Finding the Fourth Proportional to 223,309.40, 308,168.11 and 121,335.12

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Solution

The fourth proportional to 223,309.40, 308,168.11 and 121,335.12 is: 167,443.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,309.40 : 308,168.11 = 121,335.12 : x
  2. Step 2: Convert to fraction form
    223,309.40/308,168.11 = 121,335.12/x
  3. Step 3: Cross multiply
    223,309.40x = 308,168.11 × 121,335.12
  4. Step 4: Simplify right side
    223,309.40x = 37,391,614,607.02
  5. Step 5: Solve for x
    x = 37,391,614,607.02/223,309.40
  6. Step 6: Final answer
    x = 167,443.08

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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.