Home / 99,521.79-149,173.20-43,296.45

Finding the Fourth Proportional to 99,521.79, 149,173.20 and 43,296.45

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Solution

The fourth proportional to 99,521.79, 149,173.20 and 43,296.45 is: 64,897.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,521.79 : 149,173.20 = 43,296.45 : x
  2. Step 2: Convert to fraction form
    99,521.79/149,173.20 = 43,296.45/x
  3. Step 3: Cross multiply
    99,521.79x = 149,173.20 × 43,296.45
  4. Step 4: Simplify right side
    99,521.79x = 6,458,669,995.14
  5. Step 5: Solve for x
    x = 6,458,669,995.14/99,521.79
  6. Step 6: Final answer
    x = 64,897.04

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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.