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Finding the Fourth Proportional to 117,599.40, 162,126.48 and 80,804.49

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Solution

The fourth proportional to 117,599.40, 162,126.48 and 80,804.49 is: 111,399.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,599.40 : 162,126.48 = 80,804.49 : x
  2. Step 2: Convert to fraction form
    117,599.40/162,126.48 = 80,804.49/x
  3. Step 3: Cross multiply
    117,599.40x = 162,126.48 × 80,804.49
  4. Step 4: Simplify right side
    117,599.40x = 13,100,547,531.90
  5. Step 5: Solve for x
    x = 13,100,547,531.90/117,599.40
  6. Step 6: Final answer
    x = 111,399.78

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1.5x scale

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.