Home / 139,231.02-192,133.66-75,567.45

Finding the Fourth Proportional to 139,231.02, 192,133.66 and 75,567.45

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Solution

The fourth proportional to 139,231.02, 192,133.66 and 75,567.45 is: 104,280.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,231.02 : 192,133.66 = 75,567.45 : x
  2. Step 2: Convert to fraction form
    139,231.02/192,133.66 = 75,567.45/x
  3. Step 3: Cross multiply
    139,231.02x = 192,133.66 × 75,567.45
  4. Step 4: Simplify right side
    139,231.02x = 14,519,049,784.70
  5. Step 5: Solve for x
    x = 14,519,049,784.70/139,231.02
  6. Step 6: Final answer
    x = 104,280.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.