Home / 142,984.27-197,318.53-79,322.07

Finding the Fourth Proportional to 142,984.27, 197,318.53 and 79,322.07

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Solution

The fourth proportional to 142,984.27, 197,318.53 and 79,322.07 is: 109,464.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,984.27 : 197,318.53 = 79,322.07 : x
  2. Step 2: Convert to fraction form
    142,984.27/197,318.53 = 79,322.07/x
  3. Step 3: Cross multiply
    142,984.27x = 197,318.53 × 79,322.07
  4. Step 4: Simplify right side
    142,984.27x = 15,651,714,050.65
  5. Step 5: Solve for x
    x = 15,651,714,050.65/142,984.27
  6. Step 6: Final answer
    x = 109,464.59

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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.