Home / 117,731.80-162,466.50-66,749.32

Finding the Fourth Proportional to 117,731.80, 162,466.50 and 66,749.32

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Solution

The fourth proportional to 117,731.80, 162,466.50 and 66,749.32 is: 92,112.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,731.80 : 162,466.50 = 66,749.32 : x
  2. Step 2: Convert to fraction form
    117,731.80/162,466.50 = 66,749.32/x
  3. Step 3: Cross multiply
    117,731.80x = 162,466.50 × 66,749.32
  4. Step 4: Simplify right side
    117,731.80x = 10,844,528,397.78
  5. Step 5: Solve for x
    x = 10,844,528,397.78/117,731.80
  6. Step 6: Final answer
    x = 92,112.14

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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.