Home / 117,015.44-161,646.64-93,111.53

Finding the Fourth Proportional to 117,015.44, 161,646.64 and 93,111.53

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Solution

The fourth proportional to 117,015.44, 161,646.64 and 93,111.53 is: 128,625.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,015.44 : 161,646.64 = 93,111.53 : x
  2. Step 2: Convert to fraction form
    117,015.44/161,646.64 = 93,111.53/x
  3. Step 3: Cross multiply
    117,015.44x = 161,646.64 × 93,111.53
  4. Step 4: Simplify right side
    117,015.44x = 15,051,164,928.75
  5. Step 5: Solve for x
    x = 15,051,164,928.75/117,015.44
  6. Step 6: Final answer
    x = 128,625.47

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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.