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Finding the Fourth Proportional to 145,674.63, 218,512.14 and 83,301.39

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Solution

The fourth proportional to 145,674.63, 218,512.14 and 83,301.39 is: 124,952.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,674.63 : 218,512.14 = 83,301.39 : x
  2. Step 2: Convert to fraction form
    145,674.63/218,512.14 = 83,301.39/x
  3. Step 3: Cross multiply
    145,674.63x = 218,512.14 × 83,301.39
  4. Step 4: Simplify right side
    145,674.63x = 18,202,364,993.87
  5. Step 5: Solve for x
    x = 18,202,364,993.87/145,674.63
  6. Step 6: Final answer
    x = 124,952.20

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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.