Home / 115,405.20-173,107.80-76,006.80

Finding the Fourth Proportional to 115,405.20, 173,107.80 and 76,006.80

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Solution

The fourth proportional to 115,405.20, 173,107.80 and 76,006.80 is: 114,010.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,405.20 : 173,107.80 = 76,006.80 : x
  2. Step 2: Convert to fraction form
    115,405.20/173,107.80 = 76,006.80/x
  3. Step 3: Cross multiply
    115,405.20x = 173,107.80 × 76,006.80
  4. Step 4: Simplify right side
    115,405.20x = 13,157,369,933.04
  5. Step 5: Solve for x
    x = 13,157,369,933.04/115,405.20
  6. Step 6: Final answer
    x = 114,010.20

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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.