Home / 142,847.28-214,271.28-43,007.76

Finding the Fourth Proportional to 142,847.28, 214,271.28 and 43,007.76

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Solution

The fourth proportional to 142,847.28, 214,271.28 and 43,007.76 is: 64,511.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,847.28 : 214,271.28 = 43,007.76 : x
  2. Step 2: Convert to fraction form
    142,847.28/214,271.28 = 43,007.76/x
  3. Step 3: Cross multiply
    142,847.28x = 214,271.28 × 43,007.76
  4. Step 4: Simplify right side
    142,847.28x = 9,215,327,785.13
  5. Step 5: Solve for x
    x = 9,215,327,785.13/142,847.28
  6. Step 6: Final answer
    x = 64,511.75

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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.