Home / 111,360.40-166,821.90-103,487.20

Finding the Fourth Proportional to 111,360.40, 166,821.90 and 103,487.20

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Solution

The fourth proportional to 111,360.40, 166,821.90 and 103,487.20 is: 155,027.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,360.40 : 166,821.90 = 103,487.20 : x
  2. Step 2: Convert to fraction form
    111,360.40/166,821.90 = 103,487.20/x
  3. Step 3: Cross multiply
    111,360.40x = 166,821.90 × 103,487.20
  4. Step 4: Simplify right side
    111,360.40x = 17,263,931,329.68
  5. Step 5: Solve for x
    x = 17,263,931,329.68/111,360.40
  6. Step 6: Final answer
    x = 155,027.56

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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.