Home / 142,984.02-197,318.18-79,321.82

Finding the Fourth Proportional to 142,984.02, 197,318.18 and 79,321.82

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Solution

The fourth proportional to 142,984.02, 197,318.18 and 79,321.82 is: 109,464.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,984.02 : 197,318.18 = 79,321.82 : x
  2. Step 2: Convert to fraction form
    142,984.02/197,318.18 = 79,321.82/x
  3. Step 3: Cross multiply
    142,984.02x = 197,318.18 × 79,321.82
  4. Step 4: Simplify right side
    142,984.02x = 15,651,637,156.69
  5. Step 5: Solve for x
    x = 15,651,637,156.69/142,984.02
  6. Step 6: Final answer
    x = 109,464.24

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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.