Home / 115,999.20-173,998.80-37,121.40

Finding the Fourth Proportional to 115,999.20, 173,998.80 and 37,121.40

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Solution

The fourth proportional to 115,999.20, 173,998.80 and 37,121.40 is: 55,682.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,999.20 : 173,998.80 = 37,121.40 : x
  2. Step 2: Convert to fraction form
    115,999.20/173,998.80 = 37,121.40/x
  3. Step 3: Cross multiply
    115,999.20x = 173,998.80 × 37,121.40
  4. Step 4: Simplify right side
    115,999.20x = 6,459,079,054.32
  5. Step 5: Solve for x
    x = 6,459,079,054.32/115,999.20
  6. Step 6: Final answer
    x = 55,682.10

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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.