Home / 142,687.02-196,909.74-79,025.88

Finding the Fourth Proportional to 142,687.02, 196,909.74 and 79,025.88

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Solution

The fourth proportional to 142,687.02, 196,909.74 and 79,025.88 is: 109,056.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,687.02 : 196,909.74 = 79,025.88 : x
  2. Step 2: Convert to fraction form
    142,687.02/196,909.74 = 79,025.88/x
  3. Step 3: Cross multiply
    142,687.02x = 196,909.74 × 79,025.88
  4. Step 4: Simplify right side
    142,687.02x = 15,560,965,484.07
  5. Step 5: Solve for x
    x = 15,560,965,484.07/142,687.02
  6. Step 6: Final answer
    x = 109,056.63

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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.