Home / 99,389.30-149,165.55-98,611.70

Finding the Fourth Proportional to 99,389.30, 149,165.55 and 98,611.70

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Solution

The fourth proportional to 99,389.30, 149,165.55 and 98,611.70 is: 147,998.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,389.30 : 149,165.55 = 98,611.70 : x
  2. Step 2: Convert to fraction form
    99,389.30/149,165.55 = 98,611.70/x
  3. Step 3: Cross multiply
    99,389.30x = 149,165.55 × 98,611.70
  4. Step 4: Simplify right side
    99,389.30x = 14,709,468,466.94
  5. Step 5: Solve for x
    x = 14,709,468,466.94/99,389.30
  6. Step 6: Final answer
    x = 147,998.51

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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.