Home / 135,758.48-187,347.72-75,329.36

Finding the Fourth Proportional to 135,758.48, 187,347.72 and 75,329.36

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Solution

The fourth proportional to 135,758.48, 187,347.72 and 75,329.36 is: 103,955.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,758.48 : 187,347.72 = 75,329.36 : x
  2. Step 2: Convert to fraction form
    135,758.48/187,347.72 = 75,329.36/x
  3. Step 3: Cross multiply
    135,758.48x = 187,347.72 × 75,329.36
  4. Step 4: Simplify right side
    135,758.48x = 14,112,783,845.06
  5. Step 5: Solve for x
    x = 14,112,783,845.06/135,758.48
  6. Step 6: Final answer
    x = 103,955.08

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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.