Home / 147,559.48-203,631.66-80,491

Finding the Fourth Proportional to 147,559.48, 203,631.66 and 80,491

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Solution

The fourth proportional to 147,559.48, 203,631.66 and 80,491 is: 111,077.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,559.48 : 203,631.66 = 80,491 : x
  2. Step 2: Convert to fraction form
    147,559.48/203,631.66 = 80,491/x
  3. Step 3: Cross multiply
    147,559.48x = 203,631.66 × 80,491
  4. Step 4: Simplify right side
    147,559.48x = 16,390,515,945.06
  5. Step 5: Solve for x
    x = 16,390,515,945.06/147,559.48
  6. Step 6: Final answer
    x = 111,077.35

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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.