Home / 145,884.06-218,826.09-75,615.75

Finding the Fourth Proportional to 145,884.06, 218,826.09 and 75,615.75

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Solution

The fourth proportional to 145,884.06, 218,826.09 and 75,615.75 is: 113,423.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,884.06 : 218,826.09 = 75,615.75 : x
  2. Step 2: Convert to fraction form
    145,884.06/218,826.09 = 75,615.75/x
  3. Step 3: Cross multiply
    145,884.06x = 218,826.09 × 75,615.75
  4. Step 4: Simplify right side
    145,884.06x = 16,546,698,914.92
  5. Step 5: Solve for x
    x = 16,546,698,914.92/145,884.06
  6. Step 6: Final answer
    x = 113,423.63

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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.