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Finding the Fourth Proportional to 104,077.76, 143,629.93 and 63,813.72

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Solution

The fourth proportional to 104,077.76, 143,629.93 and 63,813.72 is: 88,064.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,077.76 : 143,629.93 = 63,813.72 : x
  2. Step 2: Convert to fraction form
    104,077.76/143,629.93 = 63,813.72/x
  3. Step 3: Cross multiply
    104,077.76x = 143,629.93 × 63,813.72
  4. Step 4: Simplify right side
    104,077.76x = 9,165,560,934.50
  5. Step 5: Solve for x
    x = 9,165,560,934.50/104,077.76
  6. Step 6: Final answer
    x = 88,064.55

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1.5x scale

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.