Home / 113,680.08-156,884.04-63,378

Finding the Fourth Proportional to 113,680.08, 156,884.04 and 63,378

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Solution

The fourth proportional to 113,680.08, 156,884.04 and 63,378 is: 87,464.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,680.08 : 156,884.04 = 63,378 : x
  2. Step 2: Convert to fraction form
    113,680.08/156,884.04 = 63,378/x
  3. Step 3: Cross multiply
    113,680.08x = 156,884.04 × 63,378
  4. Step 4: Simplify right side
    113,680.08x = 9,942,996,687.12
  5. Step 5: Solve for x
    x = 9,942,996,687.12/113,680.08
  6. Step 6: Final answer
    x = 87,464.72

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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.