Home / 135,089.50-186,435.03-75,485.02

Finding the Fourth Proportional to 135,089.50, 186,435.03 and 75,485.02

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Solution

The fourth proportional to 135,089.50, 186,435.03 and 75,485.02 is: 104,175.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,089.50 : 186,435.03 = 75,485.02 : x
  2. Step 2: Convert to fraction form
    135,089.50/186,435.03 = 75,485.02/x
  3. Step 3: Cross multiply
    135,089.50x = 186,435.03 × 75,485.02
  4. Step 4: Simplify right side
    135,089.50x = 14,073,051,968.25
  5. Step 5: Solve for x
    x = 14,073,051,968.25/135,089.50
  6. Step 6: Final answer
    x = 104,175.76

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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.