Home / 90,803.50-136,205.25-25,139.50

Finding the Fourth Proportional to 90,803.50, 136,205.25 and 25,139.50

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Solution

The fourth proportional to 90,803.50, 136,205.25 and 25,139.50 is: 37,709.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,803.50 : 136,205.25 = 25,139.50 : x
  2. Step 2: Convert to fraction form
    90,803.50/136,205.25 = 25,139.50/x
  3. Step 3: Cross multiply
    90,803.50x = 136,205.25 × 25,139.50
  4. Step 4: Simplify right side
    90,803.50x = 3,424,131,882.38
  5. Step 5: Solve for x
    x = 3,424,131,882.38/90,803.50
  6. Step 6: Final answer
    x = 37,709.25

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1.5x scale

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.