Home / 79,929.90-119,736.45-70,080.30

Finding the Fourth Proportional to 79,929.90, 119,736.45 and 70,080.30

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Solution

The fourth proportional to 79,929.90, 119,736.45 and 70,080.30 is: 104,981.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,929.90 : 119,736.45 = 70,080.30 : x
  2. Step 2: Convert to fraction form
    79,929.90/119,736.45 = 70,080.30/x
  3. Step 3: Cross multiply
    79,929.90x = 119,736.45 × 70,080.30
  4. Step 4: Simplify right side
    79,929.90x = 8,391,166,336.94
  5. Step 5: Solve for x
    x = 8,391,166,336.94/79,929.90
  6. Step 6: Final answer
    x = 104,981.57

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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.