Home / 123,991.07-185,916.56-113,411.45

Finding the Fourth Proportional to 123,991.07, 185,916.56 and 113,411.45

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Solution

The fourth proportional to 123,991.07, 185,916.56 and 113,411.45 is: 170,053.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,991.07 : 185,916.56 = 113,411.45 : x
  2. Step 2: Convert to fraction form
    123,991.07/185,916.56 = 113,411.45/x
  3. Step 3: Cross multiply
    123,991.07x = 185,916.56 × 113,411.45
  4. Step 4: Simplify right side
    123,991.07x = 21,085,065,151.97
  5. Step 5: Solve for x
    x = 21,085,065,151.97/123,991.07
  6. Step 6: Final answer
    x = 170,053.10

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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.