Home / 149,747.53-206,870.20-129,569.38

Finding the Fourth Proportional to 149,747.53, 206,870.20 and 129,569.38

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Solution

The fourth proportional to 149,747.53, 206,870.20 and 129,569.38 is: 178,994.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,747.53 : 206,870.20 = 129,569.38 : x
  2. Step 2: Convert to fraction form
    149,747.53/206,870.20 = 129,569.38/x
  3. Step 3: Cross multiply
    149,747.53x = 206,870.20 × 129,569.38
  4. Step 4: Simplify right side
    149,747.53x = 26,804,043,554.48
  5. Step 5: Solve for x
    x = 26,804,043,554.48/149,747.53
  6. Step 6: Final answer
    x = 178,994.90

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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.