Home / 236,731.56-355,098.68-78,959.58

Finding the Fourth Proportional to 236,731.56, 355,098.68 and 78,959.58

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Solution

The fourth proportional to 236,731.56, 355,098.68 and 78,959.58 is: 118,439.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,731.56 : 355,098.68 = 78,959.58 : x
  2. Step 2: Convert to fraction form
    236,731.56/355,098.68 = 78,959.58/x
  3. Step 3: Cross multiply
    236,731.56x = 355,098.68 × 78,959.58
  4. Step 4: Simplify right side
    236,731.56x = 28,038,442,631.35
  5. Step 5: Solve for x
    x = 28,038,442,631.35/236,731.56
  6. Step 6: Final answer
    x = 118,439.82

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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.