Home / 113,815.76-157,076.20-62,837.60

Finding the Fourth Proportional to 113,815.76, 157,076.20 and 62,837.60

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Solution

The fourth proportional to 113,815.76, 157,076.20 and 62,837.60 is: 86,721.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,815.76 : 157,076.20 = 62,837.60 : x
  2. Step 2: Convert to fraction form
    113,815.76/157,076.20 = 62,837.60/x
  3. Step 3: Cross multiply
    113,815.76x = 157,076.20 × 62,837.60
  4. Step 4: Simplify right side
    113,815.76x = 9,870,291,425.12
  5. Step 5: Solve for x
    x = 9,870,291,425.12/113,815.76
  6. Step 6: Final answer
    x = 86,721.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.