Home / 149,095.66-205,747.31-81,110.89

Finding the Fourth Proportional to 149,095.66, 205,747.31 and 81,110.89

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Solution

The fourth proportional to 149,095.66, 205,747.31 and 81,110.89 is: 111,930.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,095.66 : 205,747.31 = 81,110.89 : x
  2. Step 2: Convert to fraction form
    149,095.66/205,747.31 = 81,110.89/x
  3. Step 3: Cross multiply
    149,095.66x = 205,747.31 × 81,110.89
  4. Step 4: Simplify right side
    149,095.66x = 16,688,346,400.47
  5. Step 5: Solve for x
    x = 16,688,346,400.47/149,095.66
  6. Step 6: Final answer
    x = 111,930.47

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1.5x scale

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.