Home / 235,408.29-324,869.81-127,985.69

Finding the Fourth Proportional to 235,408.29, 324,869.81 and 127,985.69

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Solution

The fourth proportional to 235,408.29, 324,869.81 and 127,985.69 is: 176,623.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,408.29 : 324,869.81 = 127,985.69 : x
  2. Step 2: Convert to fraction form
    235,408.29/324,869.81 = 127,985.69/x
  3. Step 3: Cross multiply
    235,408.29x = 324,869.81 × 127,985.69
  4. Step 4: Simplify right side
    235,408.29x = 41,578,684,528.74
  5. Step 5: Solve for x
    x = 41,578,684,528.74/235,408.29
  6. Step 6: Final answer
    x = 176,623.71

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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.