Home / 147,241.36-202,989-99,418.96

Finding the Fourth Proportional to 147,241.36, 202,989 and 99,418.96

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Solution

The fourth proportional to 147,241.36, 202,989 and 99,418.96 is: 137,060.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,241.36 : 202,989 = 99,418.96 : x
  2. Step 2: Convert to fraction form
    147,241.36/202,989 = 99,418.96/x
  3. Step 3: Cross multiply
    147,241.36x = 202,989 × 99,418.96
  4. Step 4: Simplify right side
    147,241.36x = 20,180,955,271.44
  5. Step 5: Solve for x
    x = 20,180,955,271.44/147,241.36
  6. Step 6: Final answer
    x = 137,060.37

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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.