Home / 142,933.68-214,529.04-76,430.66

Finding the Fourth Proportional to 142,933.68, 214,529.04 and 76,430.66

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Solution

The fourth proportional to 142,933.68, 214,529.04 and 76,430.66 is: 114,714.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,933.68 : 214,529.04 = 76,430.66 : x
  2. Step 2: Convert to fraction form
    142,933.68/214,529.04 = 76,430.66/x
  3. Step 3: Cross multiply
    142,933.68x = 214,529.04 × 76,430.66
  4. Step 4: Simplify right side
    142,933.68x = 16,396,595,043.72
  5. Step 5: Solve for x
    x = 16,396,595,043.72/142,933.68
  6. Step 6: Final answer
    x = 114,714.71

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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.