Home / 122,787.96-169,435.58-75,089.50

Finding the Fourth Proportional to 122,787.96, 169,435.58 and 75,089.50

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Solution

The fourth proportional to 122,787.96, 169,435.58 and 75,089.50 is: 103,616.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,787.96 : 169,435.58 = 75,089.50 : x
  2. Step 2: Convert to fraction form
    122,787.96/169,435.58 = 75,089.50/x
  3. Step 3: Cross multiply
    122,787.96x = 169,435.58 × 75,089.50
  4. Step 4: Simplify right side
    122,787.96x = 12,722,832,984.41
  5. Step 5: Solve for x
    x = 12,722,832,984.41/122,787.96
  6. Step 6: Final answer
    x = 103,616.29

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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.