Home / 115,784.40-173,585.88-45,716.16

Finding the Fourth Proportional to 115,784.40, 173,585.88 and 45,716.16

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Solution

The fourth proportional to 115,784.40, 173,585.88 and 45,716.16 is: 68,538.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,784.40 : 173,585.88 = 45,716.16 : x
  2. Step 2: Convert to fraction form
    115,784.40/173,585.88 = 45,716.16/x
  3. Step 3: Cross multiply
    115,784.40x = 173,585.88 × 45,716.16
  4. Step 4: Simplify right side
    115,784.40x = 7,935,679,863.82
  5. Step 5: Solve for x
    x = 7,935,679,863.82/115,784.40
  6. Step 6: Final answer
    x = 68,538.42

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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.