Home / 117,555.07-162,336.66-81,842.71

Finding the Fourth Proportional to 117,555.07, 162,336.66 and 81,842.71

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Solution

The fourth proportional to 117,555.07, 162,336.66 and 81,842.71 is: 113,019.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,555.07 : 162,336.66 = 81,842.71 : x
  2. Step 2: Convert to fraction form
    117,555.07/162,336.66 = 81,842.71/x
  3. Step 3: Cross multiply
    117,555.07x = 162,336.66 × 81,842.71
  4. Step 4: Simplify right side
    117,555.07x = 13,286,072,186.75
  5. Step 5: Solve for x
    x = 13,286,072,186.75/117,555.07
  6. Step 6: Final answer
    x = 113,019.98

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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.