Home / 101,725.25-140,382.54-56,405.15

Finding the Fourth Proportional to 101,725.25, 140,382.54 and 56,405.15

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Solution

The fourth proportional to 101,725.25, 140,382.54 and 56,405.15 is: 77,840.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,725.25 : 140,382.54 = 56,405.15 : x
  2. Step 2: Convert to fraction form
    101,725.25/140,382.54 = 56,405.15/x
  3. Step 3: Cross multiply
    101,725.25x = 140,382.54 × 56,405.15
  4. Step 4: Simplify right side
    101,725.25x = 7,918,297,242.14
  5. Step 5: Solve for x
    x = 7,918,297,242.14/101,725.25
  6. Step 6: Final answer
    x = 77,840.04

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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.