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Finding the Fourth Proportional to 149,365.84, 206,080.64 and 88,888

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Solution

The fourth proportional to 149,365.84, 206,080.64 and 88,888 is: 122,639.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,365.84 : 206,080.64 = 88,888 : x
  2. Step 2: Convert to fraction form
    149,365.84/206,080.64 = 88,888/x
  3. Step 3: Cross multiply
    149,365.84x = 206,080.64 × 88,888
  4. Step 4: Simplify right side
    149,365.84x = 18,318,095,928.32
  5. Step 5: Solve for x
    x = 18,318,095,928.32/149,365.84
  6. Step 6: Final answer
    x = 122,639.13

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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.