Home / 115,965.40-173,688.90-113,373.40

Finding the Fourth Proportional to 115,965.40, 173,688.90 and 113,373.40

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Solution

The fourth proportional to 115,965.40, 173,688.90 and 113,373.40 is: 169,806.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,965.40 : 173,688.90 = 113,373.40 : x
  2. Step 2: Convert to fraction form
    115,965.40/173,688.90 = 113,373.40/x
  3. Step 3: Cross multiply
    115,965.40x = 173,688.90 × 113,373.40
  4. Step 4: Simplify right side
    115,965.40x = 19,691,701,135.26
  5. Step 5: Solve for x
    x = 19,691,701,135.26/115,965.40
  6. Step 6: Final answer
    x = 169,806.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.