Home / 123,212.12-183,926.86-108,265.40

Finding the Fourth Proportional to 123,212.12, 183,926.86 and 108,265.40

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Solution

The fourth proportional to 123,212.12, 183,926.86 and 108,265.40 is: 161,614.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,212.12 : 183,926.86 = 108,265.40 : x
  2. Step 2: Convert to fraction form
    123,212.12/183,926.86 = 108,265.40/x
  3. Step 3: Cross multiply
    123,212.12x = 183,926.86 × 108,265.40
  4. Step 4: Simplify right side
    123,212.12x = 19,912,915,068.64
  5. Step 5: Solve for x
    x = 19,912,915,068.64/123,212.12
  6. Step 6: Final answer
    x = 161,614.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.