Home / 156,787.79-216,247.93-108,470.10

Finding the Fourth Proportional to 156,787.79, 216,247.93 and 108,470.10

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Solution

The fourth proportional to 156,787.79, 216,247.93 and 108,470.10 is: 149,606.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,787.79 : 216,247.93 = 108,470.10 : x
  2. Step 2: Convert to fraction form
    156,787.79/216,247.93 = 108,470.10/x
  3. Step 3: Cross multiply
    156,787.79x = 216,247.93 × 108,470.10
  4. Step 4: Simplify right side
    156,787.79x = 23,456,435,131.65
  5. Step 5: Solve for x
    x = 23,456,435,131.65/156,787.79
  6. Step 6: Final answer
    x = 149,606.27

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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.