Home / 142,483.24-196,632.66-78,819.94

Finding the Fourth Proportional to 142,483.24, 196,632.66 and 78,819.94

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Solution

The fourth proportional to 142,483.24, 196,632.66 and 78,819.94 is: 108,774.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,483.24 : 196,632.66 = 78,819.94 : x
  2. Step 2: Convert to fraction form
    142,483.24/196,632.66 = 78,819.94/x
  3. Step 3: Cross multiply
    142,483.24x = 196,632.66 × 78,819.94
  4. Step 4: Simplify right side
    142,483.24x = 15,498,574,463.24
  5. Step 5: Solve for x
    x = 15,498,574,463.24/142,483.24
  6. Step 6: Final answer
    x = 108,774.72

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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.