Home / 142,873.62-197,125.68-112,564.86

Finding the Fourth Proportional to 142,873.62, 197,125.68 and 112,564.86

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Solution

The fourth proportional to 142,873.62, 197,125.68 and 112,564.86 is: 155,308.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,873.62 : 197,125.68 = 112,564.86 : x
  2. Step 2: Convert to fraction form
    142,873.62/197,125.68 = 112,564.86/x
  3. Step 3: Cross multiply
    142,873.62x = 197,125.68 × 112,564.86
  4. Step 4: Simplify right side
    142,873.62x = 22,189,424,571.60
  5. Step 5: Solve for x
    x = 22,189,424,571.60/142,873.62
  6. Step 6: Final answer
    x = 155,308.06

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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.