Home / 142,020.48-211,950.72-126,274.56

Finding the Fourth Proportional to 142,020.48, 211,950.72 and 126,274.56

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Solution

The fourth proportional to 142,020.48, 211,950.72 and 126,274.56 is: 188,451.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,020.48 : 211,950.72 = 126,274.56 : x
  2. Step 2: Convert to fraction form
    142,020.48/211,950.72 = 126,274.56/x
  3. Step 3: Cross multiply
    142,020.48x = 211,950.72 × 126,274.56
  4. Step 4: Simplify right side
    142,020.48x = 26,763,983,909.68
  5. Step 5: Solve for x
    x = 26,763,983,909.68/142,020.48
  6. Step 6: Final answer
    x = 188,451.58

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.