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Finding the Fourth Proportional to 84,503.04, 126,701.08 and 71,973.96

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Solution

The fourth proportional to 84,503.04, 126,701.08 and 71,973.96 is: 107,915.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,503.04 : 126,701.08 = 71,973.96 : x
  2. Step 2: Convert to fraction form
    84,503.04/126,701.08 = 71,973.96/x
  3. Step 3: Cross multiply
    84,503.04x = 126,701.08 × 71,973.96
  4. Step 4: Simplify right side
    84,503.04x = 9,119,178,463.88
  5. Step 5: Solve for x
    x = 9,119,178,463.88/84,503.04
  6. Step 6: Final answer
    x = 107,915.39

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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.