Home / 123,207.12-183,919.41-108,260.40

Finding the Fourth Proportional to 123,207.12, 183,919.41 and 108,260.40

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Solution

The fourth proportional to 123,207.12, 183,919.41 and 108,260.40 is: 161,607.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,207.12 : 183,919.41 = 108,260.40 : x
  2. Step 2: Convert to fraction form
    123,207.12/183,919.41 = 108,260.40/x
  3. Step 3: Cross multiply
    123,207.12x = 183,919.41 × 108,260.40
  4. Step 4: Simplify right side
    123,207.12x = 19,911,188,894.36
  5. Step 5: Solve for x
    x = 19,911,188,894.36/123,207.12
  6. Step 6: Final answer
    x = 161,607.45

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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.