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Finding the Fourth Proportional to 108,123.81, 162,243.87 and 44,987.50

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Solution

The fourth proportional to 108,123.81, 162,243.87 and 44,987.50 is: 67,505.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,123.81 : 162,243.87 = 44,987.50 : x
  2. Step 2: Convert to fraction form
    108,123.81/162,243.87 = 44,987.50/x
  3. Step 3: Cross multiply
    108,123.81x = 162,243.87 × 44,987.50
  4. Step 4: Simplify right side
    108,123.81x = 7,298,946,101.63
  5. Step 5: Solve for x
    x = 7,298,946,101.63/108,123.81
  6. Step 6: Final answer
    x = 67,505.45

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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.