Home / 148,204.31-204,525.88-87,788.43

Finding the Fourth Proportional to 148,204.31, 204,525.88 and 87,788.43

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Solution

The fourth proportional to 148,204.31, 204,525.88 and 87,788.43 is: 121,150.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,204.31 : 204,525.88 = 87,788.43 : x
  2. Step 2: Convert to fraction form
    148,204.31/204,525.88 = 87,788.43/x
  3. Step 3: Cross multiply
    148,204.31x = 204,525.88 × 87,788.43
  4. Step 4: Simplify right side
    148,204.31x = 17,955,005,680.10
  5. Step 5: Solve for x
    x = 17,955,005,680.10/148,204.31
  6. Step 6: Final answer
    x = 121,150.37

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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.