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Finding the Fourth Proportional to 163,486.80, 245,100.60 and 89,614.80

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Solution

The fourth proportional to 163,486.80, 245,100.60 and 89,614.80 is: 134,351.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,486.80 : 245,100.60 = 89,614.80 : x
  2. Step 2: Convert to fraction form
    163,486.80/245,100.60 = 89,614.80/x
  3. Step 3: Cross multiply
    163,486.80x = 245,100.60 × 89,614.80
  4. Step 4: Simplify right side
    163,486.80x = 21,964,641,248.88
  5. Step 5: Solve for x
    x = 21,964,641,248.88/163,486.80
  6. Step 6: Final answer
    x = 134,351.16

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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.