Home / 149,511.30-206,356.80-144,771.18

Finding the Fourth Proportional to 149,511.30, 206,356.80 and 144,771.18

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Solution

The fourth proportional to 149,511.30, 206,356.80 and 144,771.18 is: 199,814.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,511.30 : 206,356.80 = 144,771.18 : x
  2. Step 2: Convert to fraction form
    149,511.30/206,356.80 = 144,771.18/x
  3. Step 3: Cross multiply
    149,511.30x = 206,356.80 × 144,771.18
  4. Step 4: Simplify right side
    149,511.30x = 29,874,517,437.02
  5. Step 5: Solve for x
    x = 29,874,517,437.02/149,511.30
  6. Step 6: Final answer
    x = 199,814.45

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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.