Home / 129,071.07-193,489.97-45,945.63

Finding the Fourth Proportional to 129,071.07, 193,489.97 and 45,945.63

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Solution

The fourth proportional to 129,071.07, 193,489.97 and 45,945.63 is: 68,876.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,071.07 : 193,489.97 = 45,945.63 : x
  2. Step 2: Convert to fraction form
    129,071.07/193,489.97 = 45,945.63/x
  3. Step 3: Cross multiply
    129,071.07x = 193,489.97 × 45,945.63
  4. Step 4: Simplify right side
    129,071.07x = 8,890,018,340.60
  5. Step 5: Solve for x
    x = 8,890,018,340.60/129,071.07
  6. Step 6: Final answer
    x = 68,876.92

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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.