Home / 130,500.38-180,104.96-73,149.05

Finding the Fourth Proportional to 130,500.38, 180,104.96 and 73,149.05

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Solution

The fourth proportional to 130,500.38, 180,104.96 and 73,149.05 is: 100,953.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,500.38 : 180,104.96 = 73,149.05 : x
  2. Step 2: Convert to fraction form
    130,500.38/180,104.96 = 73,149.05/x
  3. Step 3: Cross multiply
    130,500.38x = 180,104.96 × 73,149.05
  4. Step 4: Simplify right side
    130,500.38x = 13,174,505,458.02
  5. Step 5: Solve for x
    x = 13,174,505,458.02/130,500.38
  6. Step 6: Final answer
    x = 100,953.77

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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.