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Finding the Fourth Proportional to 163,988.32, 245,828.72 and 88,998.56

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Solution

The fourth proportional to 163,988.32, 245,828.72 and 88,998.56 is: 133,414.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,988.32 : 245,828.72 = 88,998.56 : x
  2. Step 2: Convert to fraction form
    163,988.32/245,828.72 = 88,998.56/x
  3. Step 3: Cross multiply
    163,988.32x = 245,828.72 × 88,998.56
  4. Step 4: Simplify right side
    163,988.32x = 21,878,402,086.64
  5. Step 5: Solve for x
    x = 21,878,402,086.64/163,988.32
  6. Step 6: Final answer
    x = 133,414.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.