Home / 130,428.59-179,986.29-73,839.96

Finding the Fourth Proportional to 130,428.59, 179,986.29 and 73,839.96

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Solution

The fourth proportional to 130,428.59, 179,986.29 and 73,839.96 is: 101,896.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,428.59 : 179,986.29 = 73,839.96 : x
  2. Step 2: Convert to fraction form
    130,428.59/179,986.29 = 73,839.96/x
  3. Step 3: Cross multiply
    130,428.59x = 179,986.29 × 73,839.96
  4. Step 4: Simplify right side
    130,428.59x = 13,290,180,454.15
  5. Step 5: Solve for x
    x = 13,290,180,454.15/130,428.59
  6. Step 6: Final answer
    x = 101,896.23

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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.