Home / 155,601.10-233,401.65-138,979.90

Finding the Fourth Proportional to 155,601.10, 233,401.65 and 138,979.90

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Solution

The fourth proportional to 155,601.10, 233,401.65 and 138,979.90 is: 208,469.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,601.10 : 233,401.65 = 138,979.90 : x
  2. Step 2: Convert to fraction form
    155,601.10/233,401.65 = 138,979.90/x
  3. Step 3: Cross multiply
    155,601.10x = 233,401.65 × 138,979.90
  4. Step 4: Simplify right side
    155,601.10x = 32,438,137,976.84
  5. Step 5: Solve for x
    x = 32,438,137,976.84/155,601.10
  6. Step 6: Final answer
    x = 208,469.85

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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.