Home / 102,899.57-141,956.35-60,438.96

Finding the Fourth Proportional to 102,899.57, 141,956.35 and 60,438.96

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Solution

The fourth proportional to 102,899.57, 141,956.35 and 60,438.96 is: 83,379.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,899.57 : 141,956.35 = 60,438.96 : x
  2. Step 2: Convert to fraction form
    102,899.57/141,956.35 = 60,438.96/x
  3. Step 3: Cross multiply
    102,899.57x = 141,956.35 × 60,438.96
  4. Step 4: Simplify right side
    102,899.57x = 8,579,694,008.30
  5. Step 5: Solve for x
    x = 8,579,694,008.30/102,899.57
  6. Step 6: Final answer
    x = 83,379.30

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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.