Home / 223,390.06-308,279.98-121,415.56

Finding the Fourth Proportional to 223,390.06, 308,279.98 and 121,415.56

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Solution

The fourth proportional to 223,390.06, 308,279.98 and 121,415.56 is: 167,554.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,390.06 : 308,279.98 = 121,415.56 : x
  2. Step 2: Convert to fraction form
    223,390.06/308,279.98 = 121,415.56/x
  3. Step 3: Cross multiply
    223,390.06x = 308,279.98 × 121,415.56
  4. Step 4: Simplify right side
    223,390.06x = 37,429,986,408.49
  5. Step 5: Solve for x
    x = 37,429,986,408.49/223,390.06
  6. Step 6: Final answer
    x = 167,554.40

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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.