Home / 129,620.50-178,876.29-70,004.50

Finding the Fourth Proportional to 129,620.50, 178,876.29 and 70,004.50

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Solution

The fourth proportional to 129,620.50, 178,876.29 and 70,004.50 is: 96,606.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,620.50 : 178,876.29 = 70,004.50 : x
  2. Step 2: Convert to fraction form
    129,620.50/178,876.29 = 70,004.50/x
  3. Step 3: Cross multiply
    129,620.50x = 178,876.29 × 70,004.50
  4. Step 4: Simplify right side
    129,620.50x = 12,522,145,243.31
  5. Step 5: Solve for x
    x = 12,522,145,243.31/129,620.50
  6. Step 6: Final answer
    x = 96,606.21

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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.