Home / 136,047.30-187,745.99-75,623.57

Finding the Fourth Proportional to 136,047.30, 187,745.99 and 75,623.57

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Solution

The fourth proportional to 136,047.30, 187,745.99 and 75,623.57 is: 104,360.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,047.30 : 187,745.99 = 75,623.57 : x
  2. Step 2: Convert to fraction form
    136,047.30/187,745.99 = 75,623.57/x
  3. Step 3: Cross multiply
    136,047.30x = 187,745.99 × 75,623.57
  4. Step 4: Simplify right side
    136,047.30x = 14,198,020,700.14
  5. Step 5: Solve for x
    x = 14,198,020,700.14/136,047.30
  6. Step 6: Final answer
    x = 104,360.91

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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.