Home / 111,021.40-166,532.10-103,585.60

Finding the Fourth Proportional to 111,021.40, 166,532.10 and 103,585.60

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Solution

The fourth proportional to 111,021.40, 166,532.10 and 103,585.60 is: 155,378.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,021.40 : 166,532.10 = 103,585.60 : x
  2. Step 2: Convert to fraction form
    111,021.40/166,532.10 = 103,585.60/x
  3. Step 3: Cross multiply
    111,021.40x = 166,532.10 × 103,585.60
  4. Step 4: Simplify right side
    111,021.40x = 17,250,327,497.76
  5. Step 5: Solve for x
    x = 17,250,327,497.76/111,021.40
  6. Step 6: Final answer
    x = 155,378.40

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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.