Home / 113,776.30-156,943.64-73,513.80

Finding the Fourth Proportional to 113,776.30, 156,943.64 and 73,513.80

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Solution

The fourth proportional to 113,776.30, 156,943.64 and 73,513.80 is: 101,405.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,776.30 : 156,943.64 = 73,513.80 : x
  2. Step 2: Convert to fraction form
    113,776.30/156,943.64 = 73,513.80/x
  3. Step 3: Cross multiply
    113,776.30x = 156,943.64 × 73,513.80
  4. Step 4: Simplify right side
    113,776.30x = 11,537,523,362.23
  5. Step 5: Solve for x
    x = 11,537,523,362.23/113,776.30
  6. Step 6: Final answer
    x = 101,405.33

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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.