Home / 136,131.84-187,834.41-79,532.28

Finding the Fourth Proportional to 136,131.84, 187,834.41 and 79,532.28

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Solution

The fourth proportional to 136,131.84, 187,834.41 and 79,532.28 is: 109,738.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,131.84 : 187,834.41 = 79,532.28 : x
  2. Step 2: Convert to fraction form
    136,131.84/187,834.41 = 79,532.28/x
  3. Step 3: Cross multiply
    136,131.84x = 187,834.41 × 79,532.28
  4. Step 4: Simplify right side
    136,131.84x = 14,938,898,889.75
  5. Step 5: Solve for x
    x = 14,938,898,889.75/136,131.84
  6. Step 6: Final answer
    x = 109,738.46

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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.