Home / 123,491.36-170,425.95-75,738.22

Finding the Fourth Proportional to 123,491.36, 170,425.95 and 75,738.22

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Solution

The fourth proportional to 123,491.36, 170,425.95 and 75,738.22 is: 104,523.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,491.36 : 170,425.95 = 75,738.22 : x
  2. Step 2: Convert to fraction form
    123,491.36/170,425.95 = 75,738.22/x
  3. Step 3: Cross multiply
    123,491.36x = 170,425.95 × 75,738.22
  4. Step 4: Simplify right side
    123,491.36x = 12,907,758,094.81
  5. Step 5: Solve for x
    x = 12,907,758,094.81/123,491.36
  6. Step 6: Final answer
    x = 104,523.57

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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.