Home / 134,787.20-202,107.90-55,909.40

Finding the Fourth Proportional to 134,787.20, 202,107.90 and 55,909.40

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Solution

The fourth proportional to 134,787.20, 202,107.90 and 55,909.40 is: 83,833.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,787.20 : 202,107.90 = 55,909.40 : x
  2. Step 2: Convert to fraction form
    134,787.20/202,107.90 = 55,909.40/x
  3. Step 3: Cross multiply
    134,787.20x = 202,107.90 × 55,909.40
  4. Step 4: Simplify right side
    134,787.20x = 11,299,731,424.26
  5. Step 5: Solve for x
    x = 11,299,731,424.26/134,787.20
  6. Step 6: Final answer
    x = 83,833.86

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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.