Home / 99,683.36-137,562.62-54,361.22

Finding the Fourth Proportional to 99,683.36, 137,562.62 and 54,361.22

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Solution

The fourth proportional to 99,683.36, 137,562.62 and 54,361.22 is: 75,018.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,683.36 : 137,562.62 = 54,361.22 : x
  2. Step 2: Convert to fraction form
    99,683.36/137,562.62 = 54,361.22/x
  3. Step 3: Cross multiply
    99,683.36x = 137,562.62 × 54,361.22
  4. Step 4: Simplify right side
    99,683.36x = 7,478,072,329.41
  5. Step 5: Solve for x
    x = 7,478,072,329.41/99,683.36
  6. Step 6: Final answer
    x = 75,018.26

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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.