Home / 137,435.28-189,684.36-80,849.04

Finding the Fourth Proportional to 137,435.28, 189,684.36 and 80,849.04

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Solution

The fourth proportional to 137,435.28, 189,684.36 and 80,849.04 is: 111,585.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,435.28 : 189,684.36 = 80,849.04 : x
  2. Step 2: Convert to fraction form
    137,435.28/189,684.36 = 80,849.04/x
  3. Step 3: Cross multiply
    137,435.28x = 189,684.36 × 80,849.04
  4. Step 4: Simplify right side
    137,435.28x = 15,335,798,409.01
  5. Step 5: Solve for x
    x = 15,335,798,409.01/137,435.28
  6. Step 6: Final answer
    x = 111,585.60

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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.