Home / 130,631.37-180,278.42-73,288.85

Finding the Fourth Proportional to 130,631.37, 180,278.42 and 73,288.85

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Solution

The fourth proportional to 130,631.37, 180,278.42 and 73,288.85 is: 101,142.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,631.37 : 180,278.42 = 73,288.85 : x
  2. Step 2: Convert to fraction form
    130,631.37/180,278.42 = 73,288.85/x
  3. Step 3: Cross multiply
    130,631.37x = 180,278.42 × 73,288.85
  4. Step 4: Simplify right side
    130,631.37x = 13,212,396,813.78
  5. Step 5: Solve for x
    x = 13,212,396,813.78/130,631.37
  6. Step 6: Final answer
    x = 101,142.61

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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.