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Finding the Fourth Proportional to 95,139.40, 142,611.90 and 55,676.20

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Solution

The fourth proportional to 95,139.40, 142,611.90 and 55,676.20 is: 83,457.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,139.40 : 142,611.90 = 55,676.20 : x
  2. Step 2: Convert to fraction form
    95,139.40/142,611.90 = 55,676.20/x
  3. Step 3: Cross multiply
    95,139.40x = 142,611.90 × 55,676.20
  4. Step 4: Simplify right side
    95,139.40x = 7,940,088,666.78
  5. Step 5: Solve for x
    x = 7,940,088,666.78/95,139.40
  6. Step 6: Final answer
    x = 83,457.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.