Home / 142,927.90-197,230.89-79,263.34

Finding the Fourth Proportional to 142,927.90, 197,230.89 and 79,263.34

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Solution

The fourth proportional to 142,927.90, 197,230.89 and 79,263.34 is: 109,378.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,927.90 : 197,230.89 = 79,263.34 : x
  2. Step 2: Convert to fraction form
    142,927.90/197,230.89 = 79,263.34/x
  3. Step 3: Cross multiply
    142,927.90x = 197,230.89 × 79,263.34
  4. Step 4: Simplify right side
    142,927.90x = 15,633,179,092.57
  5. Step 5: Solve for x
    x = 15,633,179,092.57/142,927.90
  6. Step 6: Final answer
    x = 109,378.08

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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.