Home / 142,852.70-197,123.46-79,185.08

Finding the Fourth Proportional to 142,852.70, 197,123.46 and 79,185.08

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Solution

The fourth proportional to 142,852.70, 197,123.46 and 79,185.08 is: 109,268.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,852.70 : 197,123.46 = 79,185.08 : x
  2. Step 2: Convert to fraction form
    142,852.70/197,123.46 = 79,185.08/x
  3. Step 3: Cross multiply
    142,852.70x = 197,123.46 × 79,185.08
  4. Step 4: Simplify right side
    142,852.70x = 15,609,236,949.98
  5. Step 5: Solve for x
    x = 15,609,236,949.98/142,852.70
  6. Step 6: Final answer
    x = 109,268.06

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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.