Home / 103,772.96-143,217.45-63,513.53

Finding the Fourth Proportional to 103,772.96, 143,217.45 and 63,513.53

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Solution

The fourth proportional to 103,772.96, 143,217.45 and 63,513.53 is: 87,655.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,772.96 : 143,217.45 = 63,513.53 : x
  2. Step 2: Convert to fraction form
    103,772.96/143,217.45 = 63,513.53/x
  3. Step 3: Cross multiply
    103,772.96x = 143,217.45 × 63,513.53
  4. Step 4: Simplify right side
    103,772.96x = 9,096,245,807.10
  5. Step 5: Solve for x
    x = 9,096,245,807.10/103,772.96
  6. Step 6: Final answer
    x = 87,655.26

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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.