Home / 142,984.52-197,318.87-79,322.32

Finding the Fourth Proportional to 142,984.52, 197,318.87 and 79,322.32

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Solution

The fourth proportional to 142,984.52, 197,318.87 and 79,322.32 is: 109,464.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,984.52 : 197,318.87 = 79,322.32 : x
  2. Step 2: Convert to fraction form
    142,984.52/197,318.87 = 79,322.32/x
  3. Step 3: Cross multiply
    142,984.52x = 197,318.87 × 79,322.32
  4. Step 4: Simplify right side
    142,984.52x = 15,651,790,548.18
  5. Step 5: Solve for x
    x = 15,651,790,548.18/142,984.52
  6. Step 6: Final answer
    x = 109,464.93

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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.