Home / 239,948.80-331,131.61-136,577.94

Finding the Fourth Proportional to 239,948.80, 331,131.61 and 136,577.94

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Solution

The fourth proportional to 239,948.80, 331,131.61 and 136,577.94 is: 188,478.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,948.80 : 331,131.61 = 136,577.94 : x
  2. Step 2: Convert to fraction form
    239,948.80/331,131.61 = 136,577.94/x
  3. Step 3: Cross multiply
    239,948.80x = 331,131.61 × 136,577.94
  4. Step 4: Simplify right side
    239,948.80x = 45,225,274,501.46
  5. Step 5: Solve for x
    x = 45,225,274,501.46/239,948.80
  6. Step 6: Final answer
    x = 188,478.85

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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.