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Finding the Fourth Proportional to 104,408.33, 143,988.54 and 88,309.45

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Solution

The fourth proportional to 104,408.33, 143,988.54 and 88,309.45 is: 121,786.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,408.33 : 143,988.54 = 88,309.45 : x
  2. Step 2: Convert to fraction form
    104,408.33/143,988.54 = 88,309.45/x
  3. Step 3: Cross multiply
    104,408.33x = 143,988.54 × 88,309.45
  4. Step 4: Simplify right side
    104,408.33x = 12,715,548,053.76
  5. Step 5: Solve for x
    x = 12,715,548,053.76/104,408.33
  6. Step 6: Final answer
    x = 121,786.72

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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.