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Finding the Fourth Proportional to 99,800.30, 149,809.80 and 62,402.60

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Solution

The fourth proportional to 99,800.30, 149,809.80 and 62,402.60 is: 93,672.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,800.30 : 149,809.80 = 62,402.60 : x
  2. Step 2: Convert to fraction form
    99,800.30/149,809.80 = 62,402.60/x
  3. Step 3: Cross multiply
    99,800.30x = 149,809.80 × 62,402.60
  4. Step 4: Simplify right side
    99,800.30x = 9,348,521,025.48
  5. Step 5: Solve for x
    x = 9,348,521,025.48/99,800.30
  6. Step 6: Final answer
    x = 93,672.27

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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.