Home / 117,115.52-161,618.28-63,399.16

Finding the Fourth Proportional to 117,115.52, 161,618.28 and 63,399.16

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Solution

The fourth proportional to 117,115.52, 161,618.28 and 63,399.16 is: 87,490.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,115.52 : 161,618.28 = 63,399.16 : x
  2. Step 2: Convert to fraction form
    117,115.52/161,618.28 = 63,399.16/x
  3. Step 3: Cross multiply
    117,115.52x = 161,618.28 × 63,399.16
  4. Step 4: Simplify right side
    117,115.52x = 10,246,462,384.55
  5. Step 5: Solve for x
    x = 10,246,462,384.55/117,115.52
  6. Step 6: Final answer
    x = 87,490.22

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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.