Home / 123,214.12-183,929.84-108,267.40

Finding the Fourth Proportional to 123,214.12, 183,929.84 and 108,267.40

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Solution

The fourth proportional to 123,214.12, 183,929.84 and 108,267.40 is: 161,617.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,214.12 : 183,929.84 = 108,267.40 : x
  2. Step 2: Convert to fraction form
    123,214.12/183,929.84 = 108,267.40/x
  3. Step 3: Cross multiply
    123,214.12x = 183,929.84 × 108,267.40
  4. Step 4: Simplify right side
    123,214.12x = 19,913,605,559.22
  5. Step 5: Solve for x
    x = 19,913,605,559.22/123,214.12
  6. Step 6: Final answer
    x = 161,617.89

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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.