Home / 104,261.21-143,876.61-56,513.53

Finding the Fourth Proportional to 104,261.21, 143,876.61 and 56,513.53

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Solution

The fourth proportional to 104,261.21, 143,876.61 and 56,513.53 is: 77,986.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,261.21 : 143,876.61 = 56,513.53 : x
  2. Step 2: Convert to fraction form
    104,261.21/143,876.61 = 56,513.53/x
  3. Step 3: Cross multiply
    104,261.21x = 143,876.61 × 56,513.53
  4. Step 4: Simplify right side
    104,261.21x = 8,130,975,115.53
  5. Step 5: Solve for x
    x = 8,130,975,115.53/104,261.21
  6. Step 6: Final answer
    x = 77,986.58

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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.