Home / 129,625.92-178,889.76-73,039.68

Finding the Fourth Proportional to 129,625.92, 178,889.76 and 73,039.68

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Solution

The fourth proportional to 129,625.92, 178,889.76 and 73,039.68 is: 100,798.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,625.92 : 178,889.76 = 73,039.68 : x
  2. Step 2: Convert to fraction form
    129,625.92/178,889.76 = 73,039.68/x
  3. Step 3: Cross multiply
    129,625.92x = 178,889.76 × 73,039.68
  4. Step 4: Simplify right side
    129,625.92x = 13,066,050,825.68
  5. Step 5: Solve for x
    x = 13,066,050,825.68/129,625.92
  6. Step 6: Final answer
    x = 100,798.13

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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.