Home / 140,147.16-193,400.37-76,485.40

Finding the Fourth Proportional to 140,147.16, 193,400.37 and 76,485.40

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Solution

The fourth proportional to 140,147.16, 193,400.37 and 76,485.40 is: 105,548.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,147.16 : 193,400.37 = 76,485.40 : x
  2. Step 2: Convert to fraction form
    140,147.16/193,400.37 = 76,485.40/x
  3. Step 3: Cross multiply
    140,147.16x = 193,400.37 × 76,485.40
  4. Step 4: Simplify right side
    140,147.16x = 14,792,304,659.60
  5. Step 5: Solve for x
    x = 14,792,304,659.60/140,147.16
  6. Step 6: Final answer
    x = 105,548.37

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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.