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Finding the Fourth Proportional to 103,813.34, 143,253 and 58,498.70

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Solution

The fourth proportional to 103,813.34, 143,253 and 58,498.70 is: 80,722.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,813.34 : 143,253 = 58,498.70 : x
  2. Step 2: Convert to fraction form
    103,813.34/143,253 = 58,498.70/x
  3. Step 3: Cross multiply
    103,813.34x = 143,253 × 58,498.70
  4. Step 4: Simplify right side
    103,813.34x = 8,380,113,554.84
  5. Step 5: Solve for x
    x = 8,380,113,554.84/103,813.34
  6. Step 6: Final answer
    x = 80,722.90

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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.