Home / 123,940.20-186,056.10-123,065.40

Finding the Fourth Proportional to 123,940.20, 186,056.10 and 123,065.40

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Solution

The fourth proportional to 123,940.20, 186,056.10 and 123,065.40 is: 184,742.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,940.20 : 186,056.10 = 123,065.40 : x
  2. Step 2: Convert to fraction form
    123,940.20/186,056.10 = 123,065.40/x
  3. Step 3: Cross multiply
    123,940.20x = 186,056.10 × 123,065.40
  4. Step 4: Simplify right side
    123,940.20x = 22,897,068,368.94
  5. Step 5: Solve for x
    x = 22,897,068,368.94/123,940.20
  6. Step 6: Final answer
    x = 184,742.87

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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.