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Finding the Fourth Proportional to 169,815.60, 254,674.80 and 51,458.40

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Solution

The fourth proportional to 169,815.60, 254,674.80 and 51,458.40 is: 77,172.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,815.60 : 254,674.80 = 51,458.40 : x
  2. Step 2: Convert to fraction form
    169,815.60/254,674.80 = 51,458.40/x
  3. Step 3: Cross multiply
    169,815.60x = 254,674.80 × 51,458.40
  4. Step 4: Simplify right side
    169,815.60x = 13,105,157,728.32
  5. Step 5: Solve for x
    x = 13,105,157,728.32/169,815.60
  6. Step 6: Final answer
    x = 77,172.87

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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.