Home / 117,975.08-162,841.20-80,271.20

Finding the Fourth Proportional to 117,975.08, 162,841.20 and 80,271.20

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Solution

The fourth proportional to 117,975.08, 162,841.20 and 80,271.20 is: 110,798.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,975.08 : 162,841.20 = 80,271.20 : x
  2. Step 2: Convert to fraction form
    117,975.08/162,841.20 = 80,271.20/x
  3. Step 3: Cross multiply
    117,975.08x = 162,841.20 × 80,271.20
  4. Step 4: Simplify right side
    117,975.08x = 13,071,458,533.44
  5. Step 5: Solve for x
    x = 13,071,458,533.44/117,975.08
  6. Step 6: Final answer
    x = 110,798.47

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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.