Home / 149,179.51-205,815.81-84,641.14

Finding the Fourth Proportional to 149,179.51, 205,815.81 and 84,641.14

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Solution

The fourth proportional to 149,179.51, 205,815.81 and 84,641.14 is: 116,775.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,179.51 : 205,815.81 = 84,641.14 : x
  2. Step 2: Convert to fraction form
    149,179.51/205,815.81 = 84,641.14/x
  3. Step 3: Cross multiply
    149,179.51x = 205,815.81 × 84,641.14
  4. Step 4: Simplify right side
    149,179.51x = 17,420,484,788.42
  5. Step 5: Solve for x
    x = 17,420,484,788.42/149,179.51
  6. Step 6: Final answer
    x = 116,775.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.