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Finding the Fourth Proportional to 169,873.04, 254,622.72 and 69,978.76

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Solution

The fourth proportional to 169,873.04, 254,622.72 and 69,978.76 is: 104,891.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,873.04 : 254,622.72 = 69,978.76 : x
  2. Step 2: Convert to fraction form
    169,873.04/254,622.72 = 69,978.76/x
  3. Step 3: Cross multiply
    169,873.04x = 254,622.72 × 69,978.76
  4. Step 4: Simplify right side
    169,873.04x = 17,818,182,213.43
  5. Step 5: Solve for x
    x = 17,818,182,213.43/169,873.04
  6. Step 6: Final answer
    x = 104,891.17

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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.