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Finding the Fourth Proportional to 139,462.83, 192,459.96 and 75,800.76

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Solution

The fourth proportional to 139,462.83, 192,459.96 and 75,800.76 is: 104,605.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,462.83 : 192,459.96 = 75,800.76 : x
  2. Step 2: Convert to fraction form
    139,462.83/192,459.96 = 75,800.76/x
  3. Step 3: Cross multiply
    139,462.83x = 192,459.96 × 75,800.76
  4. Step 4: Simplify right side
    139,462.83x = 14,588,611,237.57
  5. Step 5: Solve for x
    x = 14,588,611,237.57/139,462.83
  6. Step 6: Final answer
    x = 104,605.73

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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.