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Finding the Fourth Proportional to 111,490.58, 153,867.93 and 63,750.98

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Solution

The fourth proportional to 111,490.58, 153,867.93 and 63,750.98 is: 87,982.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,490.58 : 153,867.93 = 63,750.98 : x
  2. Step 2: Convert to fraction form
    111,490.58/153,867.93 = 63,750.98/x
  3. Step 3: Cross multiply
    111,490.58x = 153,867.93 × 63,750.98
  4. Step 4: Simplify right side
    111,490.58x = 9,809,231,328.07
  5. Step 5: Solve for x
    x = 9,809,231,328.07/111,490.58
  6. Step 6: Final answer
    x = 87,982.60

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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.