Home / 111,122.90-166,684.35-103,687.10

Finding the Fourth Proportional to 111,122.90, 166,684.35 and 103,687.10

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Solution

The fourth proportional to 111,122.90, 166,684.35 and 103,687.10 is: 155,530.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,122.90 : 166,684.35 = 103,687.10 : x
  2. Step 2: Convert to fraction form
    111,122.90/166,684.35 = 103,687.10/x
  3. Step 3: Cross multiply
    111,122.90x = 166,684.35 × 103,687.10
  4. Step 4: Simplify right side
    111,122.90x = 17,283,016,866.89
  5. Step 5: Solve for x
    x = 17,283,016,866.89/111,122.90
  6. Step 6: Final answer
    x = 155,530.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.