Home / 135,126.54-186,474.69-75,510.54

Finding the Fourth Proportional to 135,126.54, 186,474.69 and 75,510.54

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Solution

The fourth proportional to 135,126.54, 186,474.69 and 75,510.54 is: 104,204.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,126.54 : 186,474.69 = 75,510.54 : x
  2. Step 2: Convert to fraction form
    135,126.54/186,474.69 = 75,510.54/x
  3. Step 3: Cross multiply
    135,126.54x = 186,474.69 × 75,510.54
  4. Step 4: Simplify right side
    135,126.54x = 14,080,804,538.23
  5. Step 5: Solve for x
    x = 14,080,804,538.23/135,126.54
  6. Step 6: Final answer
    x = 104,204.58

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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.