Home / 142,320.20-213,422.70-48,777.80

Finding the Fourth Proportional to 142,320.20, 213,422.70 and 48,777.80

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Solution

The fourth proportional to 142,320.20, 213,422.70 and 48,777.80 is: 73,146.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,320.20 : 213,422.70 = 48,777.80 : x
  2. Step 2: Convert to fraction form
    142,320.20/213,422.70 = 48,777.80/x
  3. Step 3: Cross multiply
    142,320.20x = 213,422.70 × 48,777.80
  4. Step 4: Simplify right side
    142,320.20x = 10,410,289,776.06
  5. Step 5: Solve for x
    x = 10,410,289,776.06/142,320.20
  6. Step 6: Final answer
    x = 73,146.96

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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.