Home / 178,929-268,402.56-45,810.36

Finding the Fourth Proportional to 178,929, 268,402.56 and 45,810.36

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Solution

The fourth proportional to 178,929, 268,402.56 and 45,810.36 is: 68,717.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,929 : 268,402.56 = 45,810.36 : x
  2. Step 2: Convert to fraction form
    178,929/268,402.56 = 45,810.36/x
  3. Step 3: Cross multiply
    178,929x = 268,402.56 × 45,810.36
  4. Step 4: Simplify right side
    178,929x = 12,295,617,898.52
  5. Step 5: Solve for x
    x = 12,295,617,898.52/178,929
  6. Step 6: Final answer
    x = 68,717.86

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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.