Home / 142,246.70-196,298.97-78,580.34

Finding the Fourth Proportional to 142,246.70, 196,298.97 and 78,580.34

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Solution

The fourth proportional to 142,246.70, 196,298.97 and 78,580.34 is: 108,440.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,246.70 : 196,298.97 = 78,580.34 : x
  2. Step 2: Convert to fraction form
    142,246.70/196,298.97 = 78,580.34/x
  3. Step 3: Cross multiply
    142,246.70x = 196,298.97 × 78,580.34
  4. Step 4: Simplify right side
    142,246.70x = 15,425,239,804.25
  5. Step 5: Solve for x
    x = 15,425,239,804.25/142,246.70
  6. Step 6: Final answer
    x = 108,440.05

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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.