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Finding the Fourth Proportional to 100,999.34, 139,408.35 and 58,567.34

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Solution

The fourth proportional to 100,999.34, 139,408.35 and 58,567.34 is: 80,839.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,999.34 : 139,408.35 = 58,567.34 : x
  2. Step 2: Convert to fraction form
    100,999.34/139,408.35 = 58,567.34/x
  3. Step 3: Cross multiply
    100,999.34x = 139,408.35 × 58,567.34
  4. Step 4: Simplify right side
    100,999.34x = 8,164,776,233.29
  5. Step 5: Solve for x
    x = 8,164,776,233.29/100,999.34
  6. Step 6: Final answer
    x = 80,839.90

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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.