Home / 99,730.20-149,768.10-96,619.80

Finding the Fourth Proportional to 99,730.20, 149,768.10 and 96,619.80

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Solution

The fourth proportional to 99,730.20, 149,768.10 and 96,619.80 is: 145,097.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,730.20 : 149,768.10 = 96,619.80 : x
  2. Step 2: Convert to fraction form
    99,730.20/149,768.10 = 96,619.80/x
  3. Step 3: Cross multiply
    99,730.20x = 149,768.10 × 96,619.80
  4. Step 4: Simplify right side
    99,730.20x = 14,470,563,868.38
  5. Step 5: Solve for x
    x = 14,470,563,868.38/99,730.20
  6. Step 6: Final answer
    x = 145,097.11

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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.