Home / 129,222.88-178,301.43-75,497.52

Finding the Fourth Proportional to 129,222.88, 178,301.43 and 75,497.52

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Solution

The fourth proportional to 129,222.88, 178,301.43 and 75,497.52 is: 104,171.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,222.88 : 178,301.43 = 75,497.52 : x
  2. Step 2: Convert to fraction form
    129,222.88/178,301.43 = 75,497.52/x
  3. Step 3: Cross multiply
    129,222.88x = 178,301.43 × 75,497.52
  4. Step 4: Simplify right side
    129,222.88x = 13,461,315,777.45
  5. Step 5: Solve for x
    x = 13,461,315,777.45/129,222.88
  6. Step 6: Final answer
    x = 104,171.30

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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.