Home / 117,617.10-162,308.79-63,900.90

Finding the Fourth Proportional to 117,617.10, 162,308.79 and 63,900.90

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Solution

The fourth proportional to 117,617.10, 162,308.79 and 63,900.90 is: 88,181.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,617.10 : 162,308.79 = 63,900.90 : x
  2. Step 2: Convert to fraction form
    117,617.10/162,308.79 = 63,900.90/x
  3. Step 3: Cross multiply
    117,617.10x = 162,308.79 × 63,900.90
  4. Step 4: Simplify right side
    117,617.10x = 10,371,677,758.91
  5. Step 5: Solve for x
    x = 10,371,677,758.91/117,617.10
  6. Step 6: Final answer
    x = 88,181.72

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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.