Home / 115,039.41-172,333.71-75,476.58

Finding the Fourth Proportional to 115,039.41, 172,333.71 and 75,476.58

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Solution

The fourth proportional to 115,039.41, 172,333.71 and 75,476.58 is: 113,066.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,039.41 : 172,333.71 = 75,476.58 : x
  2. Step 2: Convert to fraction form
    115,039.41/172,333.71 = 75,476.58/x
  3. Step 3: Cross multiply
    115,039.41x = 172,333.71 × 75,476.58
  4. Step 4: Simplify right side
    115,039.41x = 13,007,159,049.51
  5. Step 5: Solve for x
    x = 13,007,159,049.51/115,039.41
  6. Step 6: Final answer
    x = 113,066.98

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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.