Home / 120,669.47-180,816.96-45,749.33

Finding the Fourth Proportional to 120,669.47, 180,816.96 and 45,749.33

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Solution

The fourth proportional to 120,669.47, 180,816.96 and 45,749.33 is: 68,553.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,669.47 : 180,816.96 = 45,749.33 : x
  2. Step 2: Convert to fraction form
    120,669.47/180,816.96 = 45,749.33/x
  3. Step 3: Cross multiply
    120,669.47x = 180,816.96 × 45,749.33
  4. Step 4: Simplify right side
    120,669.47x = 8,272,254,772.64
  5. Step 5: Solve for x
    x = 8,272,254,772.64/120,669.47
  6. Step 6: Final answer
    x = 68,553.00

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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.