Home / 142,479.92-213,720.06-48,985.68

Finding the Fourth Proportional to 142,479.92, 213,720.06 and 48,985.68

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Solution

The fourth proportional to 142,479.92, 213,720.06 and 48,985.68 is: 73,478.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,479.92 : 213,720.06 = 48,985.68 : x
  2. Step 2: Convert to fraction form
    142,479.92/213,720.06 = 48,985.68/x
  3. Step 3: Cross multiply
    142,479.92x = 213,720.06 × 48,985.68
  4. Step 4: Simplify right side
    142,479.92x = 10,469,222,468.74
  5. Step 5: Solve for x
    x = 10,469,222,468.74/142,479.92
  6. Step 6: Final answer
    x = 73,478.58

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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.