Home / 130,919.50-180,653.70-73,550.86

Finding the Fourth Proportional to 130,919.50, 180,653.70 and 73,550.86

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Solution

The fourth proportional to 130,919.50, 180,653.70 and 73,550.86 is: 101,491.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,919.50 : 180,653.70 = 73,550.86 : x
  2. Step 2: Convert to fraction form
    130,919.50/180,653.70 = 73,550.86/x
  3. Step 3: Cross multiply
    130,919.50x = 180,653.70 × 73,550.86
  4. Step 4: Simplify right side
    130,919.50x = 13,287,234,997.18
  5. Step 5: Solve for x
    x = 13,287,234,997.18/130,919.50
  6. Step 6: Final answer
    x = 101,491.64

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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.