Home / 239,747.58-359,621.54-81,977.22

Finding the Fourth Proportional to 239,747.58, 359,621.54 and 81,977.22

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Solution

The fourth proportional to 239,747.58, 359,621.54 and 81,977.22 is: 122,965.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,747.58 : 359,621.54 = 81,977.22 : x
  2. Step 2: Convert to fraction form
    239,747.58/359,621.54 = 81,977.22/x
  3. Step 3: Cross multiply
    239,747.58x = 359,621.54 × 81,977.22
  4. Step 4: Simplify right side
    239,747.58x = 29,480,774,101.32
  5. Step 5: Solve for x
    x = 29,480,774,101.32/239,747.58
  6. Step 6: Final answer
    x = 122,965.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.