Home / 117,068.64-161,555.16-66,081.84

Finding the Fourth Proportional to 117,068.64, 161,555.16 and 66,081.84

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Solution

The fourth proportional to 117,068.64, 161,555.16 and 66,081.84 is: 91,193.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,068.64 : 161,555.16 = 66,081.84 : x
  2. Step 2: Convert to fraction form
    117,068.64/161,555.16 = 66,081.84/x
  3. Step 3: Cross multiply
    117,068.64x = 161,555.16 × 66,081.84
  4. Step 4: Simplify right side
    117,068.64x = 10,675,862,234.29
  5. Step 5: Solve for x
    x = 10,675,862,234.29/117,068.64
  6. Step 6: Final answer
    x = 91,193.19

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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.