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Finding the Fourth Proportional to 139,259.56, 192,177.72 and 75,596.90

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Solution

The fourth proportional to 139,259.56, 192,177.72 and 75,596.90 is: 104,323.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,259.56 : 192,177.72 = 75,596.90 : x
  2. Step 2: Convert to fraction form
    139,259.56/192,177.72 = 75,596.90/x
  3. Step 3: Cross multiply
    139,259.56x = 192,177.72 × 75,596.90
  4. Step 4: Simplify right side
    139,259.56x = 14,528,039,881.07
  5. Step 5: Solve for x
    x = 14,528,039,881.07/139,259.56
  6. Step 6: Final answer
    x = 104,323.47

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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.