Home / 135,763.42-187,357.80-75,338.50

Finding the Fourth Proportional to 135,763.42, 187,357.80 and 75,338.50

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Solution

The fourth proportional to 135,763.42, 187,357.80 and 75,338.50 is: 103,969.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,763.42 : 187,357.80 = 75,338.50 : x
  2. Step 2: Convert to fraction form
    135,763.42/187,357.80 = 75,338.50/x
  3. Step 3: Cross multiply
    135,763.42x = 187,357.80 × 75,338.50
  4. Step 4: Simplify right side
    135,763.42x = 14,115,255,615.30
  5. Step 5: Solve for x
    x = 14,115,255,615.30/135,763.42
  6. Step 6: Final answer
    x = 103,969.51

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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.