Home / 143,179.28-197,605.60-86,591.04

Finding the Fourth Proportional to 143,179.28, 197,605.60 and 86,591.04

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Solution

The fourth proportional to 143,179.28, 197,605.60 and 86,591.04 is: 119,506.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,179.28 : 197,605.60 = 86,591.04 : x
  2. Step 2: Convert to fraction form
    143,179.28/197,605.60 = 86,591.04/x
  3. Step 3: Cross multiply
    143,179.28x = 197,605.60 × 86,591.04
  4. Step 4: Simplify right side
    143,179.28x = 17,110,874,413.82
  5. Step 5: Solve for x
    x = 17,110,874,413.82/143,179.28
  6. Step 6: Final answer
    x = 119,506.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.