Home / 142,690.02-196,913.88-79,028.88

Finding the Fourth Proportional to 142,690.02, 196,913.88 and 79,028.88

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Solution

The fourth proportional to 142,690.02, 196,913.88 and 79,028.88 is: 109,060.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,690.02 : 196,913.88 = 79,028.88 : x
  2. Step 2: Convert to fraction form
    142,690.02/196,913.88 = 79,028.88/x
  3. Step 3: Cross multiply
    142,690.02x = 196,913.88 × 79,028.88
  4. Step 4: Simplify right side
    142,690.02x = 15,561,883,392.85
  5. Step 5: Solve for x
    x = 15,561,883,392.85/142,690.02
  6. Step 6: Final answer
    x = 109,060.77

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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.