Home / 126,837.64-190,278.31-42,605.90

Finding the Fourth Proportional to 126,837.64, 190,278.31 and 42,605.90

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Solution

The fourth proportional to 126,837.64, 190,278.31 and 42,605.90 is: 63,916.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,837.64 : 190,278.31 = 42,605.90 : x
  2. Step 2: Convert to fraction form
    126,837.64/190,278.31 = 42,605.90/x
  3. Step 3: Cross multiply
    126,837.64x = 190,278.31 × 42,605.90
  4. Step 4: Simplify right side
    126,837.64x = 8,106,978,648.03
  5. Step 5: Solve for x
    x = 8,106,978,648.03/126,837.64
  6. Step 6: Final answer
    x = 63,916.19

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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.