Home / 164,021.08-245,876.10-80,817.88

Finding the Fourth Proportional to 164,021.08, 245,876.10 and 80,817.88

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Solution

The fourth proportional to 164,021.08, 245,876.10 and 80,817.88 is: 121,150.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,021.08 : 245,876.10 = 80,817.88 : x
  2. Step 2: Convert to fraction form
    164,021.08/245,876.10 = 80,817.88/x
  3. Step 3: Cross multiply
    164,021.08x = 245,876.10 × 80,817.88
  4. Step 4: Simplify right side
    164,021.08x = 19,871,185,144.67
  5. Step 5: Solve for x
    x = 19,871,185,144.67/164,021.08
  6. Step 6: Final answer
    x = 121,150.19

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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.