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Finding the Fourth Proportional to 163,982.40, 245,901.60 and 75,206.40

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Solution

The fourth proportional to 163,982.40, 245,901.60 and 75,206.40 is: 112,776.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,982.40 : 245,901.60 = 75,206.40 : x
  2. Step 2: Convert to fraction form
    163,982.40/245,901.60 = 75,206.40/x
  3. Step 3: Cross multiply
    163,982.40x = 245,901.60 × 75,206.40
  4. Step 4: Simplify right side
    163,982.40x = 18,493,374,090.24
  5. Step 5: Solve for x
    x = 18,493,374,090.24/163,982.40
  6. Step 6: Final answer
    x = 112,776.58

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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.