Home / 255,123.08-382,710.56-68,147.72

Finding the Fourth Proportional to 255,123.08, 382,710.56 and 68,147.72

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Solution

The fourth proportional to 255,123.08, 382,710.56 and 68,147.72 is: 102,228.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,123.08 : 382,710.56 = 68,147.72 : x
  2. Step 2: Convert to fraction form
    255,123.08/382,710.56 = 68,147.72/x
  3. Step 3: Cross multiply
    255,123.08x = 382,710.56 × 68,147.72
  4. Step 4: Simplify right side
    255,123.08x = 26,080,852,083.92
  5. Step 5: Solve for x
    x = 26,080,852,083.92/255,123.08
  6. Step 6: Final answer
    x = 102,228.51

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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.