Home / 149,095.82-205,746.96-81,110.90

Finding the Fourth Proportional to 149,095.82, 205,746.96 and 81,110.90

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Solution

The fourth proportional to 149,095.82, 205,746.96 and 81,110.90 is: 111,930.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,095.82 : 205,746.96 = 81,110.90 : x
  2. Step 2: Convert to fraction form
    149,095.82/205,746.96 = 81,110.90/x
  3. Step 3: Cross multiply
    149,095.82x = 205,746.96 × 81,110.90
  4. Step 4: Simplify right side
    149,095.82x = 16,688,321,097.86
  5. Step 5: Solve for x
    x = 16,688,321,097.86/149,095.82
  6. Step 6: Final answer
    x = 111,930.17

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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.