Home / 128,259.10-192,391.98-60,775.39

Finding the Fourth Proportional to 128,259.10, 192,391.98 and 60,775.39

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Solution

The fourth proportional to 128,259.10, 192,391.98 and 60,775.39 is: 91,164.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,259.10 : 192,391.98 = 60,775.39 : x
  2. Step 2: Convert to fraction form
    128,259.10/192,391.98 = 60,775.39/x
  3. Step 3: Cross multiply
    128,259.10x = 192,391.98 × 60,775.39
  4. Step 4: Simplify right side
    128,259.10x = 11,692,697,617.37
  5. Step 5: Solve for x
    x = 11,692,697,617.37/128,259.10
  6. Step 6: Final answer
    x = 91,164.66

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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.