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Finding the Fourth Proportional to 117,360.51, 161,957.58 and 63,645.51

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Solution

The fourth proportional to 117,360.51, 161,957.58 and 63,645.51 is: 87,830.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,360.51 : 161,957.58 = 63,645.51 : x
  2. Step 2: Convert to fraction form
    117,360.51/161,957.58 = 63,645.51/x
  3. Step 3: Cross multiply
    117,360.51x = 161,957.58 × 63,645.51
  4. Step 4: Simplify right side
    117,360.51x = 10,307,872,777.47
  5. Step 5: Solve for x
    x = 10,307,872,777.47/117,360.51
  6. Step 6: Final answer
    x = 87,830.85

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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.