Home / 149,823.25-206,756.79-81,841.16

Finding the Fourth Proportional to 149,823.25, 206,756.79 and 81,841.16

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Solution

The fourth proportional to 149,823.25, 206,756.79 and 81,841.16 is: 112,941.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,823.25 : 206,756.79 = 81,841.16 : x
  2. Step 2: Convert to fraction form
    149,823.25/206,756.79 = 81,841.16/x
  3. Step 3: Cross multiply
    149,823.25x = 206,756.79 × 81,841.16
  4. Step 4: Simplify right side
    149,823.25x = 16,921,216,048.37
  5. Step 5: Solve for x
    x = 16,921,216,048.37/149,823.25
  6. Step 6: Final answer
    x = 112,941.19

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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.