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Finding the Fourth Proportional to 111,883.88, 154,360.82 and 63,480.11

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Solution

The fourth proportional to 111,883.88, 154,360.82 and 63,480.11 is: 87,580.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,883.88 : 154,360.82 = 63,480.11 : x
  2. Step 2: Convert to fraction form
    111,883.88/154,360.82 = 63,480.11/x
  3. Step 3: Cross multiply
    111,883.88x = 154,360.82 × 63,480.11
  4. Step 4: Simplify right side
    111,883.88x = 9,798,841,220.19
  5. Step 5: Solve for x
    x = 9,798,841,220.19/111,883.88
  6. Step 6: Final answer
    x = 87,580.45

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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.