Home / 147,905.40-221,858.10-54,447.60

Finding the Fourth Proportional to 147,905.40, 221,858.10 and 54,447.60

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Solution

The fourth proportional to 147,905.40, 221,858.10 and 54,447.60 is: 81,671.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,905.40 : 221,858.10 = 54,447.60 : x
  2. Step 2: Convert to fraction form
    147,905.40/221,858.10 = 54,447.60/x
  3. Step 3: Cross multiply
    147,905.40x = 221,858.10 × 54,447.60
  4. Step 4: Simplify right side
    147,905.40x = 12,079,641,085.56
  5. Step 5: Solve for x
    x = 12,079,641,085.56/147,905.40
  6. Step 6: Final answer
    x = 81,671.40

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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.