Home / 122,106.10-183,159.15-68,743.30

Finding the Fourth Proportional to 122,106.10, 183,159.15 and 68,743.30

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Solution

The fourth proportional to 122,106.10, 183,159.15 and 68,743.30 is: 103,114.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,106.10 : 183,159.15 = 68,743.30 : x
  2. Step 2: Convert to fraction form
    122,106.10/183,159.15 = 68,743.30/x
  3. Step 3: Cross multiply
    122,106.10x = 183,159.15 × 68,743.30
  4. Step 4: Simplify right side
    122,106.10x = 12,590,964,396.20
  5. Step 5: Solve for x
    x = 12,590,964,396.20/122,106.10
  6. Step 6: Final answer
    x = 103,114.95

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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.