Home / 137,846.10-190,268.87-80,500.89

Finding the Fourth Proportional to 137,846.10, 190,268.87 and 80,500.89

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Solution

The fourth proportional to 137,846.10, 190,268.87 and 80,500.89 is: 111,115.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,846.10 : 190,268.87 = 80,500.89 : x
  2. Step 2: Convert to fraction form
    137,846.10/190,268.87 = 80,500.89/x
  3. Step 3: Cross multiply
    137,846.10x = 190,268.87 × 80,500.89
  4. Step 4: Simplify right side
    137,846.10x = 15,316,813,374.29
  5. Step 5: Solve for x
    x = 15,316,813,374.29/137,846.10
  6. Step 6: Final answer
    x = 111,115.32

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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.