Home / 85,865.04-118,433.88-82,974.96

Finding the Fourth Proportional to 85,865.04, 118,433.88 and 82,974.96

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Solution

The fourth proportional to 85,865.04, 118,433.88 and 82,974.96 is: 114,447.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,865.04 : 118,433.88 = 82,974.96 : x
  2. Step 2: Convert to fraction form
    85,865.04/118,433.88 = 82,974.96/x
  3. Step 3: Cross multiply
    85,865.04x = 118,433.88 × 82,974.96
  4. Step 4: Simplify right side
    85,865.04x = 9,827,046,455.64
  5. Step 5: Solve for x
    x = 9,827,046,455.64/85,865.04
  6. Step 6: Final answer
    x = 114,447.58

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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.