Home / 104,000.22-155,929.86-40,780.80

Finding the Fourth Proportional to 104,000.22, 155,929.86 and 40,780.80

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Solution

The fourth proportional to 104,000.22, 155,929.86 and 40,780.80 is: 61,143.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,000.22 : 155,929.86 = 40,780.80 : x
  2. Step 2: Convert to fraction form
    104,000.22/155,929.86 = 40,780.80/x
  3. Step 3: Cross multiply
    104,000.22x = 155,929.86 × 40,780.80
  4. Step 4: Simplify right side
    104,000.22x = 6,358,944,434.69
  5. Step 5: Solve for x
    x = 6,358,944,434.69/104,000.22
  6. Step 6: Final answer
    x = 61,143.57

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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.