Home / 147,564.48-203,638.56-80,496

Finding the Fourth Proportional to 147,564.48, 203,638.56 and 80,496

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Solution

The fourth proportional to 147,564.48, 203,638.56 and 80,496 is: 111,084.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,564.48 : 203,638.56 = 80,496 : x
  2. Step 2: Convert to fraction form
    147,564.48/203,638.56 = 80,496/x
  3. Step 3: Cross multiply
    147,564.48x = 203,638.56 × 80,496
  4. Step 4: Simplify right side
    147,564.48x = 16,392,089,525.76
  5. Step 5: Solve for x
    x = 16,392,089,525.76/147,564.48
  6. Step 6: Final answer
    x = 111,084.25

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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.