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Finding the Fourth Proportional to 139,499.44, 192,510.48 and 75,837.36

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Solution

The fourth proportional to 139,499.44, 192,510.48 and 75,837.36 is: 104,656.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,499.44 : 192,510.48 = 75,837.36 : x
  2. Step 2: Convert to fraction form
    139,499.44/192,510.48 = 75,837.36/x
  3. Step 3: Cross multiply
    139,499.44x = 192,510.48 × 75,837.36
  4. Step 4: Simplify right side
    139,499.44x = 14,599,486,575.53
  5. Step 5: Solve for x
    x = 14,599,486,575.53/139,499.44
  6. Step 6: Final answer
    x = 104,656.24

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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.