Home / 178,760.07-268,139.86-45,640.35

Finding the Fourth Proportional to 178,760.07, 268,139.86 and 45,640.35

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Solution

The fourth proportional to 178,760.07, 268,139.86 and 45,640.35 is: 68,460.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,760.07 : 268,139.86 = 45,640.35 : x
  2. Step 2: Convert to fraction form
    178,760.07/268,139.86 = 45,640.35/x
  3. Step 3: Cross multiply
    178,760.07x = 268,139.86 × 45,640.35
  4. Step 4: Simplify right side
    178,760.07x = 12,237,996,945.25
  5. Step 5: Solve for x
    x = 12,237,996,945.25/178,760.07
  6. Step 6: Final answer
    x = 68,460.46

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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.