Home / 147,849.40-221,774.10-54,391.60

Finding the Fourth Proportional to 147,849.40, 221,774.10 and 54,391.60

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Solution

The fourth proportional to 147,849.40, 221,774.10 and 54,391.60 is: 81,587.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,849.40 : 221,774.10 = 54,391.60 : x
  2. Step 2: Convert to fraction form
    147,849.40/221,774.10 = 54,391.60/x
  3. Step 3: Cross multiply
    147,849.40x = 221,774.10 × 54,391.60
  4. Step 4: Simplify right side
    147,849.40x = 12,062,648,137.56
  5. Step 5: Solve for x
    x = 12,062,648,137.56/147,849.40
  6. Step 6: Final answer
    x = 81,587.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.