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Finding the Fourth Proportional to 131,052.48, 180,852 and 71,436.48

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Solution

The fourth proportional to 131,052.48, 180,852 and 71,436.48 is: 98,582.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,052.48 : 180,852 = 71,436.48 : x
  2. Step 2: Convert to fraction form
    131,052.48/180,852 = 71,436.48/x
  3. Step 3: Cross multiply
    131,052.48x = 180,852 × 71,436.48
  4. Step 4: Simplify right side
    131,052.48x = 12,919,430,280.96
  5. Step 5: Solve for x
    x = 12,919,430,280.96/131,052.48
  6. Step 6: Final answer
    x = 98,582.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.