Home / 111,111.40-166,667.10-103,675.60

Finding the Fourth Proportional to 111,111.40, 166,667.10 and 103,675.60

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Solution

The fourth proportional to 111,111.40, 166,667.10 and 103,675.60 is: 155,513.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,111.40 : 166,667.10 = 103,675.60 : x
  2. Step 2: Convert to fraction form
    111,111.40/166,667.10 = 103,675.60/x
  3. Step 3: Cross multiply
    111,111.40x = 166,667.10 × 103,675.60
  4. Step 4: Simplify right side
    111,111.40x = 17,279,311,592.76
  5. Step 5: Solve for x
    x = 17,279,311,592.76/111,111.40
  6. Step 6: Final answer
    x = 155,513.40

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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.