Home / 112,984.62-169,532.55-79,917.18

Finding the Fourth Proportional to 112,984.62, 169,532.55 and 79,917.18

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Solution

The fourth proportional to 112,984.62, 169,532.55 and 79,917.18 is: 119,915.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,984.62 : 169,532.55 = 79,917.18 : x
  2. Step 2: Convert to fraction form
    112,984.62/169,532.55 = 79,917.18/x
  3. Step 3: Cross multiply
    112,984.62x = 169,532.55 × 79,917.18
  4. Step 4: Simplify right side
    112,984.62x = 13,548,563,314.21
  5. Step 5: Solve for x
    x = 13,548,563,314.21/112,984.62
  6. Step 6: Final answer
    x = 119,915.11

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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.