Home / 142,311.74-213,218.38-126,866.66

Finding the Fourth Proportional to 142,311.74, 213,218.38 and 126,866.66

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Solution

The fourth proportional to 142,311.74, 213,218.38 and 126,866.66 is: 190,077.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,311.74 : 213,218.38 = 126,866.66 : x
  2. Step 2: Convert to fraction form
    142,311.74/213,218.38 = 126,866.66/x
  3. Step 3: Cross multiply
    142,311.74x = 213,218.38 × 126,866.66
  4. Step 4: Simplify right side
    142,311.74x = 27,050,302,100.08
  5. Step 5: Solve for x
    x = 27,050,302,100.08/142,311.74
  6. Step 6: Final answer
    x = 190,077.80

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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.