Home / 99,485.46-149,234.04-28,402.64

Finding the Fourth Proportional to 99,485.46, 149,234.04 and 28,402.64

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Solution

The fourth proportional to 99,485.46, 149,234.04 and 28,402.64 is: 42,605.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,485.46 : 149,234.04 = 28,402.64 : x
  2. Step 2: Convert to fraction form
    99,485.46/149,234.04 = 28,402.64/x
  3. Step 3: Cross multiply
    99,485.46x = 149,234.04 × 28,402.64
  4. Step 4: Simplify right side
    99,485.46x = 4,238,639,967.70
  5. Step 5: Solve for x
    x = 4,238,639,967.70/99,485.46
  6. Step 6: Final answer
    x = 42,605.62

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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.