Home / 115,588.40-173,188.20-76,125.20

Finding the Fourth Proportional to 115,588.40, 173,188.20 and 76,125.20

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Solution

The fourth proportional to 115,588.40, 173,188.20 and 76,125.20 is: 114,059.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,588.40 : 173,188.20 = 76,125.20 : x
  2. Step 2: Convert to fraction form
    115,588.40/173,188.20 = 76,125.20/x
  3. Step 3: Cross multiply
    115,588.40x = 173,188.20 × 76,125.20
  4. Step 4: Simplify right side
    115,588.40x = 13,183,986,362.64
  5. Step 5: Solve for x
    x = 13,183,986,362.64/115,588.40
  6. Step 6: Final answer
    x = 114,059.77

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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.