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Finding the Fourth Proportional to 163,873, 245,580.90 and 123,859.12

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Solution

The fourth proportional to 163,873, 245,580.90 and 123,859.12 is: 185,615.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,873 : 245,580.90 = 123,859.12 : x
  2. Step 2: Convert to fraction form
    163,873/245,580.90 = 123,859.12/x
  3. Step 3: Cross multiply
    163,873x = 245,580.90 × 123,859.12
  4. Step 4: Simplify right side
    163,873x = 30,417,434,162.81
  5. Step 5: Solve for x
    x = 30,417,434,162.81/163,873
  6. Step 6: Final answer
    x = 185,615.90

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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.