Home / 129,426.98-178,574.36-75,725.19

Finding the Fourth Proportional to 129,426.98, 178,574.36 and 75,725.19

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Solution

The fourth proportional to 129,426.98, 178,574.36 and 75,725.19 is: 104,480.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,426.98 : 178,574.36 = 75,725.19 : x
  2. Step 2: Convert to fraction form
    129,426.98/178,574.36 = 75,725.19/x
  3. Step 3: Cross multiply
    129,426.98x = 178,574.36 × 75,725.19
  4. Step 4: Simplify right side
    129,426.98x = 13,522,576,961.50
  5. Step 5: Solve for x
    x = 13,522,576,961.50/129,426.98
  6. Step 6: Final answer
    x = 104,480.36

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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.