Home / 117,146.04-161,664.30-66,849.72

Finding the Fourth Proportional to 117,146.04, 161,664.30 and 66,849.72

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Solution

The fourth proportional to 117,146.04, 161,664.30 and 66,849.72 is: 92,254.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,146.04 : 161,664.30 = 66,849.72 : x
  2. Step 2: Convert to fraction form
    117,146.04/161,664.30 = 66,849.72/x
  3. Step 3: Cross multiply
    117,146.04x = 161,664.30 × 66,849.72
  4. Step 4: Simplify right side
    117,146.04x = 10,807,213,189.00
  5. Step 5: Solve for x
    x = 10,807,213,189.00/117,146.04
  6. Step 6: Final answer
    x = 92,254.19

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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.