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Finding the Fourth Proportional to 115,548.75, 159,458.31 and 67,802.88

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Solution

The fourth proportional to 115,548.75, 159,458.31 and 67,802.88 is: 93,568.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,548.75 : 159,458.31 = 67,802.88 : x
  2. Step 2: Convert to fraction form
    115,548.75/159,458.31 = 67,802.88/x
  3. Step 3: Cross multiply
    115,548.75x = 159,458.31 × 67,802.88
  4. Step 4: Simplify right side
    115,548.75x = 10,811,732,657.93
  5. Step 5: Solve for x
    x = 10,811,732,657.93/115,548.75
  6. Step 6: Final answer
    x = 93,568.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.