Home / 130,425.66-179,986.47-73,836.54

Finding the Fourth Proportional to 130,425.66, 179,986.47 and 73,836.54

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Solution

The fourth proportional to 130,425.66, 179,986.47 and 73,836.54 is: 101,893.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,425.66 : 179,986.47 = 73,836.54 : x
  2. Step 2: Convert to fraction form
    130,425.66/179,986.47 = 73,836.54/x
  3. Step 3: Cross multiply
    130,425.66x = 179,986.47 × 73,836.54
  4. Step 4: Simplify right side
    130,425.66x = 13,289,578,191.61
  5. Step 5: Solve for x
    x = 13,289,578,191.61/130,425.66
  6. Step 6: Final answer
    x = 101,893.89

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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.