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Finding the Fourth Proportional to 163,696.80, 245,415.60 and 89,824.80

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Solution

The fourth proportional to 163,696.80, 245,415.60 and 89,824.80 is: 134,666.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,696.80 : 245,415.60 = 89,824.80 : x
  2. Step 2: Convert to fraction form
    163,696.80/245,415.60 = 89,824.80/x
  3. Step 3: Cross multiply
    163,696.80x = 245,415.60 × 89,824.80
  4. Step 4: Simplify right side
    163,696.80x = 22,044,407,186.88
  5. Step 5: Solve for x
    x = 22,044,407,186.88/163,696.80
  6. Step 6: Final answer
    x = 134,666.09

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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.