Home / 122,340.85-183,511.28-103,678.45

Finding the Fourth Proportional to 122,340.85, 183,511.28 and 103,678.45

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Solution

The fourth proportional to 122,340.85, 183,511.28 and 103,678.45 is: 155,517.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,340.85 : 183,511.28 = 103,678.45 : x
  2. Step 2: Convert to fraction form
    122,340.85/183,511.28 = 103,678.45/x
  3. Step 3: Cross multiply
    122,340.85x = 183,511.28 × 103,678.45
  4. Step 4: Simplify right side
    122,340.85x = 19,026,165,067.92
  5. Step 5: Solve for x
    x = 19,026,165,067.92/122,340.85
  6. Step 6: Final answer
    x = 155,517.68

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1.5x scale

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.