Home / 129,222.10-178,300.35-75,496.73

Finding the Fourth Proportional to 129,222.10, 178,300.35 and 75,496.73

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Solution

The fourth proportional to 129,222.10, 178,300.35 and 75,496.73 is: 104,170.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,222.10 : 178,300.35 = 75,496.73 : x
  2. Step 2: Convert to fraction form
    129,222.10/178,300.35 = 75,496.73/x
  3. Step 3: Cross multiply
    129,222.10x = 178,300.35 × 75,496.73
  4. Step 4: Simplify right side
    129,222.10x = 13,461,092,774.47
  5. Step 5: Solve for x
    x = 13,461,092,774.47/129,222.10
  6. Step 6: Final answer
    x = 104,170.20

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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.