Home / 134,562.96-185,688-80,816.04

Finding the Fourth Proportional to 134,562.96, 185,688 and 80,816.04

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Solution

The fourth proportional to 134,562.96, 185,688 and 80,816.04 is: 111,520.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,562.96 : 185,688 = 80,816.04 : x
  2. Step 2: Convert to fraction form
    134,562.96/185,688 = 80,816.04/x
  3. Step 3: Cross multiply
    134,562.96x = 185,688 × 80,816.04
  4. Step 4: Simplify right side
    134,562.96x = 15,006,568,835.52
  5. Step 5: Solve for x
    x = 15,006,568,835.52/134,562.96
  6. Step 6: Final answer
    x = 111,520.80

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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.