Home / 79,145.12-118,717.44-61,159.52

Finding the Fourth Proportional to 79,145.12, 118,717.44 and 61,159.52

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Solution

The fourth proportional to 79,145.12, 118,717.44 and 61,159.52 is: 91,739.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,145.12 : 118,717.44 = 61,159.52 : x
  2. Step 2: Convert to fraction form
    79,145.12/118,717.44 = 61,159.52/x
  3. Step 3: Cross multiply
    79,145.12x = 118,717.44 × 61,159.52
  4. Step 4: Simplify right side
    79,145.12x = 7,260,701,052.44
  5. Step 5: Solve for x
    x = 7,260,701,052.44/79,145.12
  6. Step 6: Final answer
    x = 91,739.09

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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.