Home / 147,386.56-203,393.36-80,318.56

Finding the Fourth Proportional to 147,386.56, 203,393.36 and 80,318.56

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Solution

The fourth proportional to 147,386.56, 203,393.36 and 80,318.56 is: 110,839.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,386.56 : 203,393.36 = 80,318.56 : x
  2. Step 2: Convert to fraction form
    147,386.56/203,393.36 = 80,318.56/x
  3. Step 3: Cross multiply
    147,386.56x = 203,393.36 × 80,318.56
  4. Step 4: Simplify right side
    147,386.56x = 16,336,261,788.76
  5. Step 5: Solve for x
    x = 16,336,261,788.76/147,386.56
  6. Step 6: Final answer
    x = 110,839.56

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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.