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Finding the Fourth Proportional to 107,419.59, 160,976.62 and 79,117.08

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Solution

The fourth proportional to 107,419.59, 160,976.62 and 79,117.08 is: 118,563.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,419.59 : 160,976.62 = 79,117.08 : x
  2. Step 2: Convert to fraction form
    107,419.59/160,976.62 = 79,117.08/x
  3. Step 3: Cross multiply
    107,419.59x = 160,976.62 × 79,117.08
  4. Step 4: Simplify right side
    107,419.59x = 12,736,000,122.67
  5. Step 5: Solve for x
    x = 12,736,000,122.67/107,419.59
  6. Step 6: Final answer
    x = 118,563.10

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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.