Home / 129,568.52-178,797.66-72,976.26

Finding the Fourth Proportional to 129,568.52, 178,797.66 and 72,976.26

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Solution

The fourth proportional to 129,568.52, 178,797.66 and 72,976.26 is: 100,703.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,568.52 : 178,797.66 = 72,976.26 : x
  2. Step 2: Convert to fraction form
    129,568.52/178,797.66 = 72,976.26/x
  3. Step 3: Cross multiply
    129,568.52x = 178,797.66 × 72,976.26
  4. Step 4: Simplify right side
    129,568.52x = 13,047,984,523.55
  5. Step 5: Solve for x
    x = 13,047,984,523.55/129,568.52
  6. Step 6: Final answer
    x = 100,703.35

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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.