Home / 99,795.80-149,605.64-40,680.92

Finding the Fourth Proportional to 99,795.80, 149,605.64 and 40,680.92

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Solution

The fourth proportional to 99,795.80, 149,605.64 and 40,680.92 is: 60,985.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,795.80 : 149,605.64 = 40,680.92 : x
  2. Step 2: Convert to fraction form
    99,795.80/149,605.64 = 40,680.92/x
  3. Step 3: Cross multiply
    99,795.80x = 149,605.64 × 40,680.92
  4. Step 4: Simplify right side
    99,795.80x = 6,086,095,072.39
  5. Step 5: Solve for x
    x = 6,086,095,072.39/99,795.80
  6. Step 6: Final answer
    x = 60,985.48

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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.