Home / 147,744.84-203,879.54-87,321.10

Finding the Fourth Proportional to 147,744.84, 203,879.54 and 87,321.10

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Solution

The fourth proportional to 147,744.84, 203,879.54 and 87,321.10 is: 120,498.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,744.84 : 203,879.54 = 87,321.10 : x
  2. Step 2: Convert to fraction form
    147,744.84/203,879.54 = 87,321.10/x
  3. Step 3: Cross multiply
    147,744.84x = 203,879.54 × 87,321.10
  4. Step 4: Simplify right side
    147,744.84x = 17,802,986,200.67
  5. Step 5: Solve for x
    x = 17,802,986,200.67/147,744.84
  6. Step 6: Final answer
    x = 120,498.20

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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.