Home / 150,185.72-206,916.40-123,285.64

Finding the Fourth Proportional to 150,185.72, 206,916.40 and 123,285.64

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Solution

The fourth proportional to 150,185.72, 206,916.40 and 123,285.64 is: 169,855.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,185.72 : 206,916.40 = 123,285.64 : x
  2. Step 2: Convert to fraction form
    150,185.72/206,916.40 = 123,285.64/x
  3. Step 3: Cross multiply
    150,185.72x = 206,916.40 × 123,285.64
  4. Step 4: Simplify right side
    150,185.72x = 25,509,820,800.50
  5. Step 5: Solve for x
    x = 25,509,820,800.50/150,185.72
  6. Step 6: Final answer
    x = 169,855.17

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1.5x scale

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.