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Finding the Fourth Proportional to 143,673.80, 215,583.59 and 64,770.48

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Solution

The fourth proportional to 143,673.80, 215,583.59 and 64,770.48 is: 97,188.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,673.80 : 215,583.59 = 64,770.48 : x
  2. Step 2: Convert to fraction form
    143,673.80/215,583.59 = 64,770.48/x
  3. Step 3: Cross multiply
    143,673.80x = 215,583.59 × 64,770.48
  4. Step 4: Simplify right side
    143,673.80x = 13,963,452,766.35
  5. Step 5: Solve for x
    x = 13,963,452,766.35/143,673.80
  6. Step 6: Final answer
    x = 97,188.58

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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.