Home / 117,111.15-161,607.26-68,706.35

Finding the Fourth Proportional to 117,111.15, 161,607.26 and 68,706.35

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Solution

The fourth proportional to 117,111.15, 161,607.26 and 68,706.35 is: 94,811.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,111.15 : 161,607.26 = 68,706.35 : x
  2. Step 2: Convert to fraction form
    117,111.15/161,607.26 = 68,706.35/x
  3. Step 3: Cross multiply
    117,111.15x = 161,607.26 × 68,706.35
  4. Step 4: Simplify right side
    117,111.15x = 11,103,445,489.00
  5. Step 5: Solve for x
    x = 11,103,445,489.00/117,111.15
  6. Step 6: Final answer
    x = 94,811.17

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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.