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Finding the Fourth Proportional to 139,994.64, 210,032.52 and 45,239.28

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Solution

The fourth proportional to 139,994.64, 210,032.52 and 45,239.28 is: 67,872.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,994.64 : 210,032.52 = 45,239.28 : x
  2. Step 2: Convert to fraction form
    139,994.64/210,032.52 = 45,239.28/x
  3. Step 3: Cross multiply
    139,994.64x = 210,032.52 × 45,239.28
  4. Step 4: Simplify right side
    139,994.64x = 9,501,719,981.39
  5. Step 5: Solve for x
    x = 9,501,719,981.39/139,994.64
  6. Step 6: Final answer
    x = 67,872.03

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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.