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Finding the Fourth Proportional to 110,510.80, 152,464.88 and 72,292.12

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Solution

The fourth proportional to 110,510.80, 152,464.88 and 72,292.12 is: 99,736.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,510.80 : 152,464.88 = 72,292.12 : x
  2. Step 2: Convert to fraction form
    110,510.80/152,464.88 = 72,292.12/x
  3. Step 3: Cross multiply
    110,510.80x = 152,464.88 × 72,292.12
  4. Step 4: Simplify right side
    110,510.80x = 11,022,008,276.96
  5. Step 5: Solve for x
    x = 11,022,008,276.96/110,510.80
  6. Step 6: Final answer
    x = 99,736.94

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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.