Home / 111,015.90-166,487.40-40,886.10

Finding the Fourth Proportional to 111,015.90, 166,487.40 and 40,886.10

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Solution

The fourth proportional to 111,015.90, 166,487.40 and 40,886.10 is: 61,315.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,015.90 : 166,487.40 = 40,886.10 : x
  2. Step 2: Convert to fraction form
    111,015.90/166,487.40 = 40,886.10/x
  3. Step 3: Cross multiply
    111,015.90x = 166,487.40 × 40,886.10
  4. Step 4: Simplify right side
    111,015.90x = 6,807,020,485.14
  5. Step 5: Solve for x
    x = 6,807,020,485.14/111,015.90
  6. Step 6: Final answer
    x = 61,315.73

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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.