Home / 137,427.90-206,171.28-42,656.10

Finding the Fourth Proportional to 137,427.90, 206,171.28 and 42,656.10

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Solution

The fourth proportional to 137,427.90, 206,171.28 and 42,656.10 is: 63,993.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,427.90 : 206,171.28 = 42,656.10 : x
  2. Step 2: Convert to fraction form
    137,427.90/206,171.28 = 42,656.10/x
  3. Step 3: Cross multiply
    137,427.90x = 206,171.28 × 42,656.10
  4. Step 4: Simplify right side
    137,427.90x = 8,794,462,736.81
  5. Step 5: Solve for x
    x = 8,794,462,736.81/137,427.90
  6. Step 6: Final answer
    x = 63,993.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.