Home / 117,056.10-161,538.39-68,686.95

Finding the Fourth Proportional to 117,056.10, 161,538.39 and 68,686.95

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Solution

The fourth proportional to 117,056.10, 161,538.39 and 68,686.95 is: 94,788.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,056.10 : 161,538.39 = 68,686.95 : x
  2. Step 2: Convert to fraction form
    117,056.10/161,538.39 = 68,686.95/x
  3. Step 3: Cross multiply
    117,056.10x = 161,538.39 × 68,686.95
  4. Step 4: Simplify right side
    117,056.10x = 11,095,579,317.01
  5. Step 5: Solve for x
    x = 11,095,579,317.01/117,056.10
  6. Step 6: Final answer
    x = 94,788.56

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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.