Home / 117,680.40-162,402.12-63,969.04

Finding the Fourth Proportional to 117,680.40, 162,402.12 and 63,969.04

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Solution

The fourth proportional to 117,680.40, 162,402.12 and 63,969.04 is: 88,279.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,680.40 : 162,402.12 = 63,969.04 : x
  2. Step 2: Convert to fraction form
    117,680.40/162,402.12 = 63,969.04/x
  3. Step 3: Cross multiply
    117,680.40x = 162,402.12 × 63,969.04
  4. Step 4: Simplify right side
    117,680.40x = 10,388,707,710.36
  5. Step 5: Solve for x
    x = 10,388,707,710.36/117,680.40
  6. Step 6: Final answer
    x = 88,279.00

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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.