Home / 137,882.12-190,270.01-77,455.31

Finding the Fourth Proportional to 137,882.12, 190,270.01 and 77,455.31

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Solution

The fourth proportional to 137,882.12, 190,270.01 and 77,455.31 is: 106,884.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,882.12 : 190,270.01 = 77,455.31 : x
  2. Step 2: Convert to fraction form
    137,882.12/190,270.01 = 77,455.31/x
  3. Step 3: Cross multiply
    137,882.12x = 190,270.01 × 77,455.31
  4. Step 4: Simplify right side
    137,882.12x = 14,737,421,850.54
  5. Step 5: Solve for x
    x = 14,737,421,850.54/137,882.12
  6. Step 6: Final answer
    x = 106,884.22

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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.