Home / 117,657.08-162,390.39-69,901.22

Finding the Fourth Proportional to 117,657.08, 162,390.39 and 69,901.22

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Solution

The fourth proportional to 117,657.08, 162,390.39 and 69,901.22 is: 96,477.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,657.08 : 162,390.39 = 69,901.22 : x
  2. Step 2: Convert to fraction form
    117,657.08/162,390.39 = 69,901.22/x
  3. Step 3: Cross multiply
    117,657.08x = 162,390.39 × 69,901.22
  4. Step 4: Simplify right side
    117,657.08x = 11,351,286,377.28
  5. Step 5: Solve for x
    x = 11,351,286,377.28/117,657.08
  6. Step 6: Final answer
    x = 96,477.72

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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.