Home / 102,372.68-141,190.76-85,956.50

Finding the Fourth Proportional to 102,372.68, 141,190.76 and 85,956.50

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Solution

The fourth proportional to 102,372.68, 141,190.76 and 85,956.50 is: 118,549.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,372.68 : 141,190.76 = 85,956.50 : x
  2. Step 2: Convert to fraction form
    102,372.68/141,190.76 = 85,956.50/x
  3. Step 3: Cross multiply
    102,372.68x = 141,190.76 × 85,956.50
  4. Step 4: Simplify right side
    102,372.68x = 12,136,263,561.94
  5. Step 5: Solve for x
    x = 12,136,263,561.94/102,372.68
  6. Step 6: Final answer
    x = 118,549.83

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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.