Home / 142,914.76-197,221.26-79,252.72

Finding the Fourth Proportional to 142,914.76, 197,221.26 and 79,252.72

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Solution

The fourth proportional to 142,914.76, 197,221.26 and 79,252.72 is: 109,368.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,914.76 : 197,221.26 = 79,252.72 : x
  2. Step 2: Convert to fraction form
    142,914.76/197,221.26 = 79,252.72/x
  3. Step 3: Cross multiply
    142,914.76x = 197,221.26 × 79,252.72
  4. Step 4: Simplify right side
    142,914.76x = 15,630,321,296.83
  5. Step 5: Solve for x
    x = 15,630,321,296.83/142,914.76
  6. Step 6: Final answer
    x = 109,368.14

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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.