Home / 140,041.36-193,257.06-76,379.16

Finding the Fourth Proportional to 140,041.36, 193,257.06 and 76,379.16

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Solution

The fourth proportional to 140,041.36, 193,257.06 and 76,379.16 is: 105,403.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,041.36 : 193,257.06 = 76,379.16 : x
  2. Step 2: Convert to fraction form
    140,041.36/193,257.06 = 76,379.16/x
  3. Step 3: Cross multiply
    140,041.36x = 193,257.06 × 76,379.16
  4. Step 4: Simplify right side
    140,041.36x = 14,760,811,906.87
  5. Step 5: Solve for x
    x = 14,760,811,906.87/140,041.36
  6. Step 6: Final answer
    x = 105,403.23

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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.