Home / 128,505.02-192,630.36-60,918.33

Finding the Fourth Proportional to 128,505.02, 192,630.36 and 60,918.33

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Solution

The fourth proportional to 128,505.02, 192,630.36 and 60,918.33 is: 91,317.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,505.02 : 192,630.36 = 60,918.33 : x
  2. Step 2: Convert to fraction form
    128,505.02/192,630.36 = 60,918.33/x
  3. Step 3: Cross multiply
    128,505.02x = 192,630.36 × 60,918.33
  4. Step 4: Simplify right side
    128,505.02x = 11,734,719,838.50
  5. Step 5: Solve for x
    x = 11,734,719,838.50/128,505.02
  6. Step 6: Final answer
    x = 91,317.21

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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.